Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9305b0fa7794ce7ff7df7cdaef3e0e93c49e1b0a1cbad35f71384a7743132e15' 
  AND token = 'fYYl+6lc4ue97/3Tm+judd3yLlJZuXlvRpHUoPclDYU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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