{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987627241",
    "entityType": "User",
    "nonce": "0x55f85bbeaf93a4366cbc9a72a4d9109a77cf514fa823684c048f412434a1f8b6",
    "signature": "0x414afc192b96fdbb0111423289cf45c878c00fe8311d305cab891976b6ad424f70a642cfd3cdd6a1193a04d85e9263c46baabb76c5d4de1605919d35222f07811b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}