Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5d161313e418428b2e84002149229afaa08b73eb1e3848af58e75312b04974c5' 
  AND token = 's4G977ozKCb7zsyM95fthE9wzaGM/T/gHTFoOBqg3P8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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