Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'acc2aa324b096af53827e24fd3ff2e326e9ac32fe1830be891bfa740d511a995' 
  AND token = 'EII1JneRfVfmNe19Yl5rXUHsA/vkjfSRcmhL8hE7nuY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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