{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "439618",
    "entityType": "User",
    "nonce": "0xd25c1dfdc45ebeb38b9d36d92637ebf68fb45aa53170cf1ae942dde5765e68b9",
    "signature": "0x9f172decc9bd9afac3d2f09f4f3969f974a6da23dc99fef77228735f06055bc966e58ad1ca0f6b91511e85aa49c2757104a726711aa0cf2ebb3fd1cae2782f441c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}