Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '63f1ff950816587404df38462a6394aa1a4f75f795cb04b6d1991ec8edc4221f' 
  AND token = 'aAdS+L1xNUS9kzv4TeP/PieU+8iyXZAVJ8xc/2eltEo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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