{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "482171",
    "entityType": "User",
    "nonce": "0xbdf7eb77adaa40f787020dec63aa69faf8c460a3172575a4fd67ace226a1a1a2",
    "signature": "0x19112347c962cbc9dbd046c53d108435b22ac0ee4d1647ddc90c51553793e57e5d3b141f795c860ba079d5482ce10788ac1ef475d749c6cf44c259ec1657ad9e1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}