{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1856105",
    "entityType": "User",
    "nonce": "0x6db721458297343cf1a69f0cc267ee66171a451f80cb4563d5972fc5668e979f",
    "signature": "0x868288d6a9fd239e9427d4227f300e4848e8f30dc15c29fcbb9e09b8f808ceef74e62b42a235d1c9d93b91b3eac6229030cd203caa60aec8118ccded82c702901b",
    "signer": "0xff61C2F581c4C2d8Dd7096dd6f44505117256C6e",
    "userId": "695559277"
  }
}