Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '7c792528efecd71623bd761ecee5ce4122221d185060d5a430cc7025b93ceea4' 
  AND token = 'Z3y9E6ur8cSyhuFnBChGeYhuCzc4/b7T8AGD5MpjF0o=' 
  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"
    }
  }
}