{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306102391",
    "entityType": "User",
    "nonce": "0x2ec68ec7af899d83851ef254c4e69ad570020f615f7c8e0e70d681bae66bbcbb",
    "signature": "0x45a463998fc1e129e36fb4ab836cf8f724fdbe0b9114c66a9694fe9a28f584576b2032a71f2716103bab6057e01dbe3f7b8fa528ce01558765e46aa849ba66f81c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}