{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "268559",
    "entityType": "User",
    "nonce": "0x79cbf3d14400d3e93ac4bad0a4d44de77a083a35a535827642a8ba85509ff44c",
    "signature": "0x342d0423719187474279760e4ca9bc9f3f0ae08810ac23f5a8b51e15ea373e9b2b64cbae70fd94271b31783c06dd7e987fff51b2a083266af29b4775d5529b221b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}