{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152751",
    "entityType": "User",
    "nonce": "0x109aba11e3459d80fa5502f0c2e65b13bc1f0d30db283b0bb728c033f90f0865",
    "signature": "0x04383205a9336fdcfb4ab3ffc062cc7328dbb75a6a7fc35fb79084f7790dad143a2af18d93f67e73fdc5dd43edd9534c93fdf976cf616e0bc6c2ee9b0f694baf1c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}