{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347139808",
    "entityType": "User",
    "nonce": "0x411991d904701f4830605b93896497a4098590c1a5d9a5d7d78243ab398369f1",
    "signature": "0xc5abfccd69b3e3256a67bae8e8be03511dc2c28465506a00286ec7b71cf7a3521d68bb5dd20d7195fb2054936052ba0515ccaa1f873f6ea023654138c0f1cc551c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}