Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ed746a3fb55d9c0c8b9a6ceaccb957f082fd917a3bd5c7b75760bfecd6ab9489' 
  AND token = 'WvzGof0u4z4tTFQ82S9ccPG1GOKcQs0a5Vm7HFSJCDo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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