{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x1214f69a3d62a0d491c80a865cf3fbcf4f657a3c034caa6bc8c35772a043f25f",
    "signature": "0x78f2c646e36e1e9fb9362dcd2cdfe0da2f6d853abb0e066b2b1f71a31e0688b37c3565f79ecdfe20c2c2a000c871792da66e522c49188b343be3951f2fcdaf9d1c",
    "signer": "0xD55D966a5B1D2ae3c7E642B79A648625202B91B8",
    "userId": "223852376"
  }
}