{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x70504faace41b45a93e2a472ecffe46f173e547924d221c0b53b5a8f72e7c27c",
    "signature": "0x15edf1f3a2a127bcd689d55700629ac1961152434574b3068ed77b3b3e15c89503e5d08487be3b6aefa5633889ab864e9f74465d821a2f261ba424dcac28e9681b",
    "signer": "0x1FAF3C6ab652411A004DdcF812Aee9dEB0d7Cc74",
    "userId": "395353709"
  }
}