{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137166",
    "entityType": "User",
    "nonce": "0x90587d71dbccab7834d030518564931759f813ef7180fc5bd29c79fca96c238d",
    "signature": "0x076ae864971cf1a5cb2575aa6d8bf7aa51a27cec134ced5ebb50255afff621f6290711aeac265793dcf2c1fdd89b7d9d0ab8efc468718c46d8e3ff01f28410b81c",
    "signer": "0x7c5233DE7A8aD918D090BD36cC8C0e6273814D60",
    "userId": "559710456"
  }
}