{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13372",
    "entityType": "User",
    "nonce": "0x70383315e0fa44220f03f91f729ba516cb6c14955e29505f61a6c777dc6dd5ce",
    "signature": "0xab71efb3f708fa31db01a0c6f2d9ac6ae09d6a7310515db10e3b77874b944bad60645e356701cbceb3a9c1d520f792b553fb39705098065e09bf75cc5e06b99d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}