{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xba65c0a8895a9553e0ddac08ed0c9d298d65833d1f1c4dcc2731e00ac4a2470f",
    "signature": "0xa5fcac04aa99948b23f284daa5e004cc47d6c3d0f0a53a639c36b551d737c8f67b6263d445e43cd241c20c725b9e8ad876064b3baaf790b2599833e3d7f8ba031b",
    "signer": "0xc28F39d473d5C4cacc612630A8798a119D1Bb506",
    "userId": "901788935"
  }
}