{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "207972",
    "entityType": "User",
    "nonce": "0x9d20193cdbac78b95e2736026cf2d69a0958896692e1ea46a31ef64b753f1317",
    "signature": "0x198f8eed7823d0519eadedbb458e092196cca70a5e177f875ed5138ff77bb4237334a4dd71064b5978e128abbf5e4cf141d5f59bee6780f420ea1464272754661c",
    "signer": "0x9FA029c6E43fD9781215e024e9ae5802602Ed2Db",
    "userId": "738673571"
  }
}