Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '10babf04039520257ee6e097ad849edfa1ce34cf69ccc8226c0769c0c5052eca' 
  AND token = 'zNGJpCDq32mD+DqsT/Tpwx1XZLMmdUjtThOcDCVL8QE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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