{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302595",
    "entityType": "User",
    "nonce": "0x8d01963fb3422463679d0c0fb53f651044c57d264e244b3a30894ac7fd52bfc6",
    "signature": "0xf22d0f59d8909bd46ceb7742898b91de2dc7b2d1ee059f16ec496226fead1ca45a3ade1df66ba64015a27d4483e0d47203cf7eb70a31bf78339c988bf60bf2f21b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}