{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12730129",
    "entityType": "User",
    "nonce": "0xd962e0d205206c31238861906ad1410b44fb91e2a5f4f9820bf558cd820d9729",
    "signature": "0x36cb3f713b94be089bf9fc6c0b0a33b9392225184340ecfcb2385a740cb9d73d70ebf1a8e5d4b1ce99ea0c1aae23ded1d17cb5ee647379acf26c6032516a3ad21c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}