Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7e698d6149ee6c845cc226430a5abfc9d88403df73f5ae9a44777831daab82f3' 
  AND token = 'VsKS71Zo0sy1psF1TXg7w9wiOmbYQJWnoYl5aQDoaBw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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