{
  "manageEntity": {
    "action": "Update",
    "entityId": "43754840",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera4lyyc4spcgglphwuvufdfbs2wiungzc6ohwrjhrurho3k6edftmq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":286830119},{\"type\":\"playlist\",\"playlist_id\":257689016},{\"type\":\"playlist\",\"playlist_id\":192146528},{\"type\":\"playlist\",\"playlist_id\":884161203},{\"type\":\"playlist\",\"playlist_id\":477809508}]}}}",
    "nonce": "0xd93521df2cf9041a7be6dab5c0c86b49908f51e46be2f4521858cbfa53cc90c6",
    "signature": "0x8a038a88423b57d09ba56c694458c0146700b979b4b4dfb7a642af421faade9f59d16f739d0efcffb62b507be41ca1d88d3a249680ecf82150df0c61a34a99ce1c",
    "signer": "0x6409f2D99228Fee0405Ccf5572802befaCd890f2",
    "userId": "43754840"
  }
}