Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62d94aa8bae1d5b82f71f15b2b2726e66c05d50581523843d7e03a2984273661' 
  AND token = 'kNBkndRpALhLYTs/LbB+KR6Nl4ez1EB4E7ALWdiZXm0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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