{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234380",
    "entityType": "User",
    "nonce": "0x4724a13f1f034469a8a3b932fb2d6c749bf6a83637598391e7db3fc35561f531",
    "signature": "0xf466a2e0d06b51826962ab6cf0dbc559642eeb64b473c77917457f201dfdd2ad194b8d827e7bbe6869c68cae6f60de20bb2e14caddb82b9ca283d51377b5c30d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}