{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1591061",
    "entityType": "User",
    "nonce": "0x7f142926913d16859c8db98d0decafd80f7e55be9da8ac3ee10572100122faf7",
    "signature": "0x8ab01caa6d310339910bc093224f22b70acf1ece834ec9c41c7e9d032184913a04e26a952405b8c0b8c533907443aae5d87fe105a674a15e8aa1df21b8bb5f171b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}