{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194273",
    "entityType": "User",
    "nonce": "0x68d82faa1e5f99d104038f310e6ce57af77d086ff776cd6b26fad001afc3ca19",
    "signature": "0xef59116f78020f9c8e4b9441397ae961b7d576ea394c063a2c35e2570da8425e0ef0a22dfb2f6147dc2d0bf48a3422b98412eb5e51cdbfb616fa9d3b80f6b6961c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}