SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '058204603c4ff379209f67d5a1fb852cba332ac2868c3411f621eda7869ff0e3' 
  AND token = '2CCV9wv/yBhK1fYMh29dssVgIhtDbpyRUdpKscNtBWY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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