{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16782",
    "entityType": "User",
    "nonce": "0xa854a3bfef303b9facb29840312843db551866626b4625b450eb9ce1d8a710ee",
    "signature": "0xb9d95b745132757ab3a967190e8707d887956587588cfa2354acd401e4498b3979e647e5104e01b5144adc74ced7ffabf068ba3348b79eca50aa74f142149e0b1c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}