{
  "manageEntity": {
    "action": "Update",
    "entityId": "844023207",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x32971963173e3f237a19c3918245acb77ce1e7faa892c46482f9d67f4abef6b2",
    "signature": "0x4a47503b9d4c2350afb4721110cc92a3d7133959b1ba09c6de88a559ffd4c72631c091bee72e475fbe9fd6fd99adf08e46c5a879548f38fd722c6d19d23b79641c",
    "signer": "0xDB60d72286B9326724894d40ad560De42B155858",
    "userId": "844023207"
  }
}