{
  "manageEntity": {
    "action": "Update",
    "entityId": "308558165",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahywsqurbzyb2gmcirtmdsisqqnfkmobjra6sxpxmqvs3ynrwobka\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2000619365},{\"type\":\"playlist\",\"playlist_id\":1877951072}]}}}",
    "nonce": "0xd2a722b41cd14412a80ed15053d5e6199368bdc2eba66941401e5a58e7cd4b73",
    "signature": "0x6cdc530847a8f448e581e38f67664bc4c0112aabf8b8d2285bbbcd54122bca5c4057405c8673f06b337149f5d41ba1ffb6304f146c9bfdcaf6875c9919ecc7e41b",
    "signer": "0xa85dce385eaA369F6073e0b6e242561d0870425C",
    "userId": "308558165"
  }
}