Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bf3167ed04b67af05eef22a651e46e4b987d429c0bdddcfa3ac26292eb32c289' 
  AND token = 'nw6/Dflo4AvhEShJ+FdnmJA6YBUyv2l16gHA2ckjyHU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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