Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22adf9e98bb98598fbe04ddc86c454026cf272681ce1148d95547c3990961682' 
  AND token = '5DdBcSMB6xzc3U0dGncCrOG5jut8A/f0Lrmu/b6bv54=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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