{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "790883101",
    "entityType": "User",
    "nonce": "0xe228b51f477b4c0d2d509f3d80d94df7fcfbb8d5ae8075e685f4e556fb17ae3b",
    "signature": "0xf410038bee298d7cac98c4f10a3c0cfc269905c6f66dfbffb1dff957b42134a27357b210149b3eba0d82ba0b10c19e0df10bee4ba1326ef145e851c52b1e94201c",
    "signer": "0x7c2f6C8E39514CA33Af557b55Ae76A43850B28f5",
    "userId": "317425703"
  }
}