Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a1bd97005fe5956c12efaa2ae27ec46a4ba59b11ccdecfe9906574746f1841e7' 
  AND token = 'cF6mgHyUpV9yeobDK6qsuzq7w66Lcj8CG1umcrdjxtM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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