{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1481739",
    "entityType": "User",
    "nonce": "0xf2fbc1c9fed25e117e34099fe60a1648fe8aef9c7e17b913c9e5506f59c1d400",
    "signature": "0xca9484bace5c1bab132ac2b2e2c9ef5ff614aeaf1bcb1d23210aad1becbb5683036ec8d9628e33f2c9705a1e16fd5f1e74ddfa9afd0320fa89ea42768cb6031a1c",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}