{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc0d105e13afd7e484c20c37552e3b2b363ebc25f3c84d54c0ee8b290dcfed65d",
    "signature": "0x86802bba4867e8aecae93fd17f7e95857944fed9cf7268e354baa4cf16ef85eb0a01068b385cbb2c32c262dd33b3aa1d866f8a4e74ce32e5065b8bdccb3781f11c",
    "signer": "0xd5d2849B83C7c8cF0Ef86e1361452992a16bCd52",
    "userId": "766172020"
  }
}