Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '8c30246cadce751d76e4fe98b520ce81c1252aaa3411809b13c4bdd9e0df82af' 
  AND token = 'h9aE6qSvLZF7m4oGfAcAlAE9WUs+yjIvVf8fqfYAdDY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00010

JSON explain

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