{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1887966",
    "entityType": "User",
    "nonce": "0xd5f04486c08fcc33c3aca0ab5842a08a12e76ed8718d369ccc0cf8e3890d3fec",
    "signature": "0x19945ce2138d691a6ebb2d4c31b440636a17efb6a76cd4c6c4c01b7838bea7706aebd48eb79ccb08d44c20dcd882df5f4a1bb08a1ab60c5fc6d712c10d4ae4111b",
    "signer": "0xC3292D1c5a77306Fc761537D80c8EeBAfF3b8Bdc",
    "userId": "3964985"
  }
}