Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1bb06b0ea7c616c0ae82b43f2b160cee324cc7b1615377683b1d23dce8539acb' 
  AND token = 'C96Phvx9atxa1/v5yyzZiXJ0GkM/DLx1BKAQbvqH5yY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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