Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1969245021161ffa7e618acc1ff1ace854ee8ad8aa8ddedbbb46d53e895c6544' 
  AND token = 'A0SdcqqoDltHLYl+Vp+Q5HA/NkKXSP0iDby+uUi7uag=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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