Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62159733ddf86aadbc78e6a8f7e279fc4d17cd8df8793fbbc970bb5f0b8361c5' 
  AND token = '3ywI3Eu3QPQpcGFd6vFyh0HgK8dBZr3urPs/zl77b80=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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