SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fc899b65d40f5fdad776df6404f2c428532c96b5fc87bda6ba36f0d86892a95a' 
  AND token = '4jpRAmzBLOH1Grqiw+UpjGomitHoThberhxLMz/sGms=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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