{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6b411f315a316bd40f1eed9f584183812defce8522b70e2fbe6f67267ddcdedf",
    "signature": "0x2f214f560ddf160f4303618fc1537d2d46b0bd49a23d72de1bcd3bee7fa8bab731f0f282840154fbf2cabd396170cc25beb08b6566136385f32e9df328df32d01c",
    "signer": "0xdCAf5149A8084F2C1c72dE882740656EfA9715b4",
    "userId": "994758391"
  }
}