{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x0ac75e4de47263f554e334d40e3f8fff9568102539c2d538efa9b0ca9c926ac5",
    "signature": "0x8129c019604dbb4882a4f68d568ab8323fec074c8430b9473e9735e35b377c6b2c55d681b7519c1636b011b36de7fb9a0547c7ad548110346563700d333445c01b",
    "signer": "0x61ea441D4688a4338ce4Cd94Dcc6Fe22baa6dD06",
    "userId": "850464732"
  }
}