{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175779",
    "entityType": "User",
    "nonce": "0x7abcc995785145ae9c3d2b9d162ceabf3cceaee45313b13f6be3229b4c14cb45",
    "signature": "0x44e6ceef642bdb2b9d39c57bba280958259feb9a5d56b9258befa19f6b27d77f260874a40bcba14c0a06fecdc1c3e6abc615c54a20af7720225a9c184c03462c1c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}