{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145920",
    "entityType": "User",
    "nonce": "0xf30a3c45d046e9f76e343e9227a267e0a1f2a1f4033c93376e3193f42cc3391f",
    "signature": "0x8f8504f64cfdfadcc6f5d149e711f2d123d79f70a62daa814e0e074b7bc53b744d0a303efce255da9f73bdcc5088c7e68635ef1589f0a73d7c838ec0f51404521c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}