{
  "manageEntity": {
    "action": "Update",
    "entityId": "267910787",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraunvti3p4ysnatiuymrsqiodrq5gtebj2utkka5hnafbznrwcudxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1447218742}]}}}",
    "nonce": "0xd57048983532dce587148f98a43577c5386c1437c12c16676b6e7670e1597fb4",
    "signature": "0x3d08863ace25e78779fb64d0339170785164f94b6317739ad0b48eeeafd867663a342f96ceabc0f26d54d34431b4baf3cb77e6ffc2ca74d7135cad886435db051b",
    "signer": "0x29a7E09A087404bE0d171B4ad8ebc3cE31676354",
    "userId": "267910787"
  }
}