{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134623867",
    "entityType": "User",
    "nonce": "0x7709e6d1a617e8d4202269db3c9ad1ad8413531a91707d15bf764e197b815752",
    "signature": "0x62d571fb728aa91b330837f66a19a0b4345547f24f385b4bee05ff21c1de14f804a26f8fa31bfd879314c6def22f331383c345cd0133ecdf0d5f546464b92a181b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}