{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956687976",
    "entityType": "User",
    "nonce": "0xc66e7c7fa0f9650a579af71ba4187da08d8a920707c3a9678e2d521ea736937a",
    "signature": "0x66e135917324368f63784d646eb83ad116454896f3649fab2c3e522bf07788671be539dba4f690db896fd5cb5423ee8bc9b7b8d2cb484e888ba2721eadd4cc8e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}