{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x68f6a8b02b180fbf6d378de4f130c9c76fbcb876683f8c7a4e431358d2d382b4",
    "signature": "0x5aff83802848e09b9f31d31aaa9b506eb99030b3d243df8ee21877bcd45669641bc09158e33ef9f4ef1903eb500a8cf651fa653c87a63a9ec65bfa405e77afe41b",
    "signer": "0x852FDa0c130c951EDaE841AE4bc41ec03BB55D5D",
    "userId": "709857362"
  }
}