{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984259712",
    "entityType": "User",
    "nonce": "0xb13963e1ff88a21efcfb871f0773b3dbf5070acafb3f6fb19ae350abc7e33ff8",
    "signature": "0x91c778eee69d9f29c44bbc1d3c9faf18b80da2073940e10a41dd19e19baeffd91feaccec65eebc2a77d275e3c0f861ad094fb285b5e89f923f932e9f3951f4331c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}