{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52403052",
    "entityType": "User",
    "nonce": "0xbfb9234f34445b73057a691beeea0677c297d266d47c662290fc23b043b26298",
    "signature": "0x44cf0b5a97cd6506d5df57e5372f346646a7e6ff02a4bb07cbd0ec534fe9068f2ab6bcfe5715d7e02c4c25f7c7354cc383fe24d1c359abd50e48b3a93087dee51c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}