{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "349283310",
    "entityType": "User",
    "nonce": "0xcf6dd6318719a2b35d7980c1926502d142159a4ba18d414f912380bf3349ee60",
    "signature": "0x61c59b452fcf22558328097dc645fcdd4fce7ae99049689f67010d196f0e088b7a52efe00d34c1a47e15049ed450e3aad2d80ede360061d701fac587080880781c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}