{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50161",
    "entityType": "User",
    "nonce": "0xef5aed0ff2c99ab089fa43b8f58ebefe5ffc2c94e7d0413cd1f0e9f6d4bd1351",
    "signature": "0xc78475c1428d258f282fabd9afdcdd17ba00f5d210d6fec5cf882d8a171221d1675e741cd243d0b517762aadace596ff6f4fac18e71cc649299606af9fcaa58c1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}