Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fbb700575b742aed0369f111acccdaab14f3fffc6e625f875bf46c93e3f1c55c' 
  AND token = 'mQldzHXwmesvSjGq+m8V0/+7l3FoPnP3o1QIVcfW2EY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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