Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07972d7d848300a10c11389a7309d9217ba7283836179a929ee18bfe2dd1a46f' 
  AND token = 'XZVoObXDYDAnTDRmE6ZlNCWS2U0OTBd+LwWInVHN4u0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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