Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '63b501216bb53d569b36aaf71027dc5c04ca1bed2bafbfd3fa8f2c565e5e7807' 
  AND token = 'xIzW6c9neXou1JwziW+cMBjxj/KBpcVHOPK94kpP/Ms=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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