Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'a115cc73314e3c4bfbcb3baeb038e905de5d198c2ac87571b4e429288c26a000' 
  AND token = '1a8i5NQ6YGXSueer+7GyjcDnae92sKl7x1n7vlLZb/8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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