{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0x998458a192f4e4376b4fc09877b1bb0442dd7dedab6efc296ef4ed8380bf36d7",
    "signature": "0xda0c55d1a51e0b4d2c7f8dac03b69b5bcb4ca4263c11f1ca2408833126a486882b22adc6fdfe5d6f54fb597d5b318f750a53ccb1253f7845d9b0f1f6e8336adb1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}