{
  "manageEntity": {
    "action": "Update",
    "entityId": "721987098",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa32ce04490c8cce834f45d946eb85b7588d118adf2746a114f41096549cc052b",
    "signature": "0x0806f9c48c5d3cf51ecd0f5f00495b21c6ae32303fb70ac2985089d1d7df869f3f677dca767d2c0c3559a8ca8111478aa9a5f984841ff2707f338e1dc8d8cc731b",
    "signer": "0x4c2B6D597D288449d9F215489E66f1cCe1c85B8F",
    "userId": "721987098"
  }
}