{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0xf6274e9210b5d4ba71f8c0f322dbe9438d5b3b3ac130b6da5ab5922a8a239990",
    "signature": "0x07c4d258b307bca012a3f82f529e871247422efcaf3faee7f01fa0e3d2e340e041f869506e281ddb1a12ec1ef33a04f096cf77381cdc7a66dc06f784bebfc0d41b",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}