{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "758745",
    "entityType": "User",
    "nonce": "0x5c87e63000383d8a3d04d228bc5f79188a9dd679c3cd52e5fb6ff1508e268089",
    "signature": "0xad69cd8b6622f574bfdf8810a3fded1c6c32f4933828d02b181a65c170aecb8b182284dbd888336b33077f073401764a3a90981a0476f55d01c672b1c3cc4deb1b",
    "signer": "0xA7D206a8f2b63986B1Af437a01CFbCDCcE69601e",
    "userId": "856769027"
  }
}