{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "156451",
    "entityType": "User",
    "nonce": "0x925641852d8e05654b23be0c68bce4b7cca8fc37481edecbdee2c6c55ce1cab9",
    "signature": "0xc750455ca3da2aea6151a60c4032c61c4f216e389250e20d6c5eda112889bb667d86ce01d71dde339513ba10efa8135ad28cc59188fe645ba2e533efcc4af1541b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}