{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1708760",
    "entityType": "User",
    "nonce": "0xb540df1a3f96754c5ed6658437020d6274701e0c599eec6603b6d6124bfaa32c",
    "signature": "0xdc92ecf2f6f04b22ce503252edb74d00f5e7220e94f278d3ca572f74a19d251a27a00723a8dfb709502ba68cdc008695e8377143226b1d00329646b7d89fdec61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}