Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5e00713bf95fe759dc508ef4307239860209cf6feb56678eb3c692ed8785b117' 
  AND token = 'ZR74dH5tEvTmif3er4DTpQqECtDqIi2gIJecIHwQJsA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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