{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "299214",
    "entityType": "User",
    "nonce": "0x7d1ae472181097bb4152dc8aef8ff89c8a6c580c29931f31ca21358c57a7e557",
    "signature": "0x15e0aa5a2e3592d25ea9dea0e69f34a6810f6b5fcd75b6173d5075fb74eda2d775ead1139d37b0a2904ef635e092af26085355338fbbfec007d299ed362a0b8a1b",
    "signer": "0xb1B522e4c290853bC2ABb1D802d311A7EB1e696B",
    "userId": "94334210"
  }
}