{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200959284",
    "entityType": "User",
    "nonce": "0xa8f57250394d79216b232d78cc99d3f439da36501d8601b4156423a7a29cab97",
    "signature": "0x4e2cd9edbe42f939ae70dc863be2023dc4635d9bc0eb3659dc9810ca286a474b1845d4b64b51c5d2d902e3dcde83c6b280226d0e9321561e7851564f72f7ede91c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}