{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x108a4734adb486a7592aafcb3579b15301d341dda72b4afc8387d64aada3849c",
    "signature": "0xd94fa0d76775576a283b9f458120c5b10cd1049a471eb02855d0d64033eb4abd7bf6f68b25e31a3409648909ecc0095ce1e26302f7f9598adefc8569e09768991b",
    "signer": "0x2CD314789C9583D12b6F54862F9E2cf505880Ad9",
    "userId": "354640"
  }
}