{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9536b96791ce169e92dd0a4c873c4bb8719c80bddf0c19e82d81bc6d406209da",
    "signature": "0x62e0e9f51a0c87ff63aefb7abf40bf0e222385196e75ca19351bb6c99670105a7ff34372444c5b530b5e0c60b0a657ea7d268ce4a011e80d36c286a65501027e1c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}