{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73368",
    "entityType": "User",
    "nonce": "0xdfe937678f3feb39ed2bf9307c8d71cc47cd6a066fa0aa0b36bf7a268473e73d",
    "signature": "0xe0907d1ecba1eef6163e6de7b26903ab4cc2583ee54c206162a02dedddade0150f08e5b6e8aa09188682320f940e8d7182f4d78f013555d695d46f61d3a6253d1b",
    "signer": "0x8ce8B4fd5ED050E67C0aac70eAB0a188FD71eeC2",
    "userId": "757523374"
  }
}