Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e77399964f11ab79e4155415d340392545bd38ea977db0ba5a52f640b09cf1c6' 
  AND token = 'Bfb8vZ3W3imCwuccqJgrPfLUzV1vUPfkc1foVWnb4Ak=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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