{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1724",
    "entityType": "User",
    "nonce": "0x1f1629b06625183cc69003b87ebb21a088310e34f79e1525808bd52777d0b154",
    "signature": "0xee998ddafc5dffda21655807ccb8ee86d97cf7e20c183e5cce4a6fec62ef204340d4a518aac82489d314093077797e3789318abf929632c3cb63e74d3a4cdd051c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}