{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xb837d399b041856393fea016553fb08de8b950279bfe42caea1f1107bf60127b",
    "signature": "0xf1c9b3fc06b047355fa1320e5845b9cdcf2f01a8138a4e4bca2029fb761a52b4462864a1df0fa4e74d2146a48d7ab2fbabf5a92e58b459bc1ec5746b912d49d71b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}