{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "827803944",
    "entityType": "User",
    "nonce": "0x2cba54eb8eb8f9498cd995bf8f14a8a23ce5028afb0625f3d2d9ed5697d583e8",
    "signature": "0xb4284c90e58bf770572526350a9ec145c8ec3b4b0c434dd81578ca877db13ac65c81fe75c820b4b9dfe46919438829b7fcba5797077edff2ceb1ac6956dab3751c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}