{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0x9794915d4b2b22518fad99c48405e3621987d3d3cd722b054d1583f15808d253",
    "signature": "0xf3f716b7b3646057402ef096163582ae70f9d8d329e4fbdcda31853582b1aa7004e354dfbda183021c5dca47d19471462de1584d35ab8e734fd885a6f479186d1b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}