Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5c59ebdbbb65dc9a900acc0d0ed9f333ddabc2cd351269ec967b274cdbd12553' 
  AND token = 'T360b/2l18F3keH2/z2J0Nfn3DDfDiy+veN0W4I223s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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