Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '46ace279c76a5f38faa9b9aa613f12a1c3e986db7874b779e52dda1446b645c2' 
  AND token = 'tEd0VhxN5fmiURpTwh+EbIpjX1d/iJjROIXOPijELo4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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