{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148891",
    "entityType": "User",
    "nonce": "0x0455914e3e3ab7c75ef15c3677e60221848d62a28418ea0e82fbae42183e79be",
    "signature": "0xd859d246d41abadbab1de08e99ef7548a9fba5359cda2fbe0287ea350bdeb454717611b41e2e609be5faeeae652f799e8f45593225038812d37eb08ef8db57091b",
    "signer": "0x6b89eeF406A3D10E08768E85967dB17cf7EaCd03",
    "userId": "125044"
  }
}