{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x7d434907e271ea3da91a4e0a5b3e5450e45bb0b00f04dba0a19614ed2fb01141",
    "signature": "0x653abf0f4ba73bd4fec59a572b51c97c98ee2eebc5659bfd6beef3e3a61e36f81de1bc70939cacb372cecd3561f5cd1d73273c3c4d71add15c5d4db6dc455eea1c",
    "signer": "0x71e8a1008312b57F0b32643d96c39a4bb8104F9B",
    "userId": "201249681"
  }
}