{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "883647137",
    "entityType": "User",
    "nonce": "0x208f45bb8ec16c77c86674dc86110ea60ae96d1b2b0158d37b6e66c1f380159a",
    "signature": "0xc3386920786c82c27345560d258f3bb782458980bfc4231c1f54496299e7227b656fc3867c99c0cf33a847891ffb80e8921822423495b902fcf66cbeca3d7f2d1b",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}