{
  "manageEntity": {
    "action": "Update",
    "entityId": "486047998",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1e7557238e3cc3c3915930326154e289653fe997c920e8327e480551d1288c55",
    "signature": "0x09dc3dc20cdaf4a1fe0a1b7f09f00b10ce4420d67ed0c16f119c4b2dc84277f243c0fc9514c61aa56bf9d9a65dd0be08929a7dd2cb20e1e385690d01500163bc1b",
    "signer": "0xd46d0175A09f261C4735A1F872Dd6B3265DaaE00",
    "userId": "486047998"
  }
}