Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '80f54d3c87e40a971cc7bd6595690d786e4d443a438a22c99c602f19d08979ec' 
  AND token = 'kMuyG98U35/hIgm414DL+rTHXge6ypaAylYNBL4mAHE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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