{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325172820",
    "entityType": "User",
    "nonce": "0x8b58efedd2945601bf46736361da12ab2347ffa508ad25e3e2df5081056ba36c",
    "signature": "0xe036c7d4f7d7641eed0c0a36eb199067b225f04a93c39be2ca4c85b381ed275f3da60a9b07d3c70e3d2f18494161546bdf3fae33f9b589d088659b130e6c049f1b",
    "signer": "0xeFa8434BC0857C168073d0D66Ac5247A15889659",
    "userId": "58218732"
  }
}