{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "127893",
    "entityType": "User",
    "nonce": "0xaa744cb2e1e2e1a821dc7e8e1fd6af1fd2d79166bd893f71032a19e9e4245443",
    "signature": "0x35e37a38cd7662b011bcd6a1eb8f151abccc7be94f4779055edf4117449d5283327e5e805adb061d7e045b31d78497aae0e7bf2a3f069981db7d8ed84f8538ec1b",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}