Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'ce09b12d443a20bccb60c89001d6058737f8a86655c4c057f67ec59a73485e0c' 
  AND token = 'OloEJqw5iEHAtqAdHNWQpQkS2A4DXCb6Nm3eIZrIN8Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00008

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}