{
  "manageEntity": {
    "action": "Update",
    "entityId": "860699447",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x151d6748084d76563db7cf1e440d28ad7cfef1be0c9dadae56162319ccea3c33",
    "signature": "0x8738793cbe9115f79efd3561a1c3a51617660cac67d7ba94bb1079d69a05f0f83d48ba949603529c963c9eb4215fa92638f1b4bf358a4895263c1ac10741e7a01c",
    "signer": "0xb52E8FcE6ECCedf0147ce1d916621AB9fdA52bEB",
    "userId": "860699447"
  }
}