{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1228",
    "entityType": "User",
    "nonce": "0x48d62664237cda162aff2ea481dc79ae9b841255f15c2dd0e4b967c6d4522aa8",
    "signature": "0x06a404999e794c29b7904273143795a8f6c05c8fcd74c7e4ceda3592d8f996967c8edfd8efc0f369ec317168cf0ec7858d8db6c802edad9b255f6b9ef16c10d01c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}