{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297541",
    "entityType": "User",
    "nonce": "0xda1d930383a3f76ee73d2e2c45c938e9e2d5abd527d47b70c4629058dc62ff8b",
    "signature": "0xb21c746fc295ffb4688b4cd7a4c52c0e04f26911a53cfb928f28e6731d49ce8f2d04ec9f586b7b4f137934c38d8e9e49798c6612b9cc6fb4e928a693bad5d6b31c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}