{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0xc9aecc4cdeac0ce8a6e678c92069d8b3bdcd9de7e78baa18102d86244363a30a",
    "signature": "0xdf313ee11964f20852044f04c28316672178b6cb1bba88224b4a576ed6fdc6ea101ea340587b315c73d6291b8e7cd03b810dedc01477569a9a6352c34cfd27371c",
    "signer": "0x9de29362DF595E6949CaA2820c5c28c3D6b0CEe1",
    "userId": "857551474"
  }
}