Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '94e522242e4e67b4bc48ed477ace103917fcbb56445374b6efea8a64a9f313af' 
  AND token = 'QZ2akDUZA/yEES/M5P2NaPClDwPVhx0qr91q64Gp0Sw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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