{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaa79c771d25a0cff9db6ebe55c19d14866e712c12ff7220631bb130358993004",
    "signature": "0x4a6a97240ad0aef2a762969bdc6160f40559fbb9c02994bc33948342ea96b93937d849869bfa2e6dd2701b71d3f55f2f1e554c67f70ac48bb4a03f9115a4b1fc1b",
    "signer": "0x0CD8c65F2d0399B442E2f8907f48BC34f1Ee7615",
    "userId": "901822438"
  }
}