Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'adae7462ba0374e4f565038c90451f3e125c9d7bcb74443c5ce727070ee62371' 
  AND token = 'nAaUX/pbnMuLgTEDiG9zc3vrmrc7xu7cZ1tleGFQAwk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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