{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384526",
    "entityType": "User",
    "nonce": "0x0a4ee250f57ab3a9ee75aa94206b32b309df11019efaf37ea35c6911d8c15b89",
    "signature": "0x42883bcacd429a79b8eab186a87e85409b4e340c8d78e3e2912687172f4cc7b02cbddacba895aa166f918fc885451a62251c3d97098f52676a91d7a9be152e2a1b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}