{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "942771296",
    "entityType": "User",
    "nonce": "0xd0ddf894db5b679e69006c080dae06fce54352bd82345706d01b71793a32fae3",
    "signature": "0xfc2b825cdab653c8e125c73b376fef7aef5aa135ae17aa4f04e4827960bea0f4102d7d3ca5dfec9487bac4e4ceb7fabd2359230abb0055ad194f17a875a774611c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}