{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x654b368be9a7c3ff8c2eff24b792594875bd9a3dc73c05a2dd1c9da451d8ea5a",
    "signature": "0x42b8172b22148085a009b51078a998f57b7a82448b6491a0b01f394c6adf053e30aefbbd92e15850609d40f9229aaf41714a9926408368d2335f9156e826dd1b1b",
    "signer": "0xf82e52e1920c814E22ec3E3F972d631F0e582b58",
    "userId": "880056325"
  }
}