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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95542598b2cd37c11b7a7df53355448c2bcb80aa6464667c7fb2747578014bb3' 
  AND token = 'qy5JTAZ159hcHctEt8wBoWX85/GeU2X2QZ0L9c1JvxI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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