{
  "manageEntity": {
    "action": "Update",
    "entityId": "758403941",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7c8a5dadeb39292449f8d656082ca4b443095aae5612266fd63f6061400cd4e3",
    "signature": "0x41ec5749b1b8f211c95d95e020bed9da25e0b56b79ec1cb4d49a5a445bb3775a1c00ea939ec4cea3b21c1af5e1f628c1b113717f8766d64d3f62467ae0bc4aae1b",
    "signer": "0xCe924ffd53D86Dbef0C2Ff14D8363469048BbA5F",
    "userId": "758403941"
  }
}