Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2280d5836f031ea1e6e135b3b6d146f60152e30bfeea512061c69d42269d3294' 
  AND token = '1GbOSMJLF6aV62DhVRf0mG1POCVwKTGHlPY0f0j8mu8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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