{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "745004514",
    "entityType": "User",
    "nonce": "0xed58cf7c78d337e734e183d88568b4fae2bcb35151669e03522a2f80d8cb0947",
    "signature": "0xe38d4c6e397e538cc21eb1f9b4f9fbfc5536184fec26050d4e753cbf8cca19610588567f338251d33c4863f558420bd03bb1fcf404439647623563b4262624bc1b",
    "signer": "0x83A4162810A55B49858D3b17aC8572D1c34eC8EE",
    "userId": "517422960"
  }
}