Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7746aeeb3895c78f6629c36e0aa6abe80ecc7cf3dbf65d8abbabf8f2f3ae7a6c' 
  AND token = 'N9Q4Mgnj/Mx/HKJqAafkWTizd9uC0sWDsJg0/JFJpTc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00631

JSON explain

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