Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64312d10a4ca5880d45f9ff3782adeace5175fc4c35156ca49fd25b8f0788359' 
  AND token = '5Bxhu+d1Ozu/pStMD+kF8e1kAuL0wt28OfOi58ngpwY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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