{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "177409",
    "entityType": "User",
    "nonce": "0xd7a24c141b4ef419ac743f38e1b12cf3983fe1c3d9d679b8b1c8cb368e1be9d7",
    "signature": "0xd236ccc2b4818768e7536b777e4ec92a5c4e3a570ce9ba51678dd1a955cad47252da677a7bbe27aaa363a0033d3c28f744e714ad6b359396b388da2f9bcf42c01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}