{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "765540152",
    "entityType": "User",
    "nonce": "0x2f1bea8beb01b1cdeaa0e3fad28f65c413f8f799c49d88d0b2c71d19cdf86f99",
    "signature": "0xc19ed0b815a1dc6d1743d889a4eaf05fdfcacee67f27544f4b1e479fa0834cab322fa61ca3f86e0b543dd83b9f7c513504335cb8f0261bc9109d04115a5040361c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}