Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95fc28709200b0de747cab8ac92aa9118095f3dffe51eac15ea0c51401df76a2' 
  AND token = 'Dz0GItuaXa58MRMTWrncmGTvz7x8YxnH4jXPNVHt6LM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}