Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b737153405d40bae776c1d6dbb72149486e4cd6de1ce8ffb3f21d2c3d4a631ec' 
  AND token = 'iqQ5ep3FWbMP/Cy/3HJ9t/MSLYi5dqCEim6ieGENDxE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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