{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "112737",
    "entityType": "User",
    "nonce": "0xe12b55894bc56cfbae9921f72ab7ab5251c6b0a6bb69beaf0af9a1689b2eed27",
    "signature": "0xa3a9c798dd3e3c2babd3ad44a5dab665ea19bf5da634542a7d0b91fd3633fcd71576afb703b053234f0a0e32d14c2658d5921174faa32d54d7b49a508fe4245c1c",
    "signer": "0x3CE307cb27B2Fc2b03Eae311050CA4e8C34Fa57d",
    "userId": "50936"
  }
}