{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400035644",
    "entityType": "User",
    "nonce": "0x93158d3061b8213750f870b867111adfcc4edb73f873dd63f9cc7a96df5e0b73",
    "signature": "0xa6fd440a667d68ff4ed09882277363ed9fd78b81236f1356f9abc8f99f4de5386b08775702c5f7cb039f82236b6a3bab25a945d263753f31c977ee22c8414ef61c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}