Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f19ad883b161208f312a32c7678ab8623d39234ea3e7cacddef07c9f2b128372' 
  AND token = 'K2J6bZVCo3RJft1C0jgZ/3kaM8vpPkCPAguAFBDc+GM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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