Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7f08eff292246d5531adaf3459070cae45e7e140802ac4431fd2c22167d1a177' 
  AND token = 'kmOGferCZlF/TXQ8SQic5Woc7J0glZ0vX9VEtipP92E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}