{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219239808",
    "entityType": "User",
    "nonce": "0x681176f42fff35371af328057d2e60b31e602e7d5c4062a028af76e98e21fdd3",
    "signature": "0xf2a160830606cdb0e39fade8674c9d709057f453b9c4450f21aceade7e00c0d822914e8a973741ff1eff73cd8dd1b55199044e6e2971b35e84a4d71a98415d951c",
    "signer": "0x97Ce19D122F5b51231cF4DBbd25Ac36CBDd6CACa",
    "userId": "426864186"
  }
}