{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1037384",
    "entityType": "User",
    "nonce": "0xddfea3249117cf90e15ea93d6e1134fd9f5dc23939709732529b9139cd41ae7b",
    "signature": "0x10bdbfb3153ad588bde54af6166a241e1996d8c1a6bc45f89baa1ae21c9929c22a2c20549b12be57ed87625d1107c1f65f60d38584877cdffd748a96ebc941211c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}