{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709633854",
    "entityType": "User",
    "nonce": "0x826a7e3418dd6a49d81fc8e3b4f417fdfb546d9ae03b0ab4bff548ee469c1aac",
    "signature": "0x4e59a6b584e2e2b475816c07ab5a56af8d8b8c6a277bcd3a665cecf31c0b5be827f28e34d0844aebf80cf27a7c16330e6c959d6c6281b09ebf0fd10b4abcc4761b",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}