{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30",
    "entityType": "User",
    "nonce": "0x87a162d110dd563f505f480dfd0c73737df73b42d7db04b3d3728798e2163ef1",
    "signature": "0xe9b4c73c3ebbda7def4da4dc78d673903b9112d7b757b492fd6dc620306c8830712ab39d3405924d473b7e1acaa33e988608b6213b1b4e30d4e760874871a3611c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}