Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '589a3786474b9eea6f55021e3c53b1a1acf0eb9a83309f447f4b986460e67912' 
  AND token = 'sqMK22UBP+3/n41yoUAruO9CJFN2YCNOaqPKDFC85po=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00117

JSON explain

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