{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344756485",
    "entityType": "User",
    "nonce": "0xad8778d8243ad88982ecf49cbdad7f70a4d14f667411637bdcc6adcf7bd00cd6",
    "signature": "0xfd2f9adb85b64995a3825cb50614f7dfcab545e18ddaae02855a5528963126c809b68d32394b04ce2f1c098a4d496fa4dae637b695c36a5964856ac974dd064e1b",
    "signer": "0xbA83b3D0645C0C99c76cB296B0BA81bD641DB81c",
    "userId": "951995708"
  }
}