{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49485",
    "entityType": "User",
    "nonce": "0x577e42cd46e6ed469f9795463a4cee6ccb7e9930793d6880263ba3b17508e09f",
    "signature": "0x7d30cbdcd2130be91096eedf3e2737abd7672bb489db35e3abe803569e7188600b6431813ae4f5d7f4ab025aa12259839c05cdb5adae6fb0def1582ccfab0c3f1c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}