Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01700cafd348247162410f953bcb597c5fc131c9cc950d0df5cb2c3136d02b3c' 
  AND token = 'J6jwJYWLsIRgHux4gR/EVExu3U2RvAWhL+wX0DKsf6A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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