{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "804422713",
    "entityType": "User",
    "nonce": "0xa6707558a1e92f61c4c0257bc82d2462e8ad66d9efe7d7dd1ff6e33da9aff7e1",
    "signature": "0x9addfddb1efaa75dbb296e92341907d7c8dfe8823769da6fa4a9b39d7eb00fb90d9dbc7afa39747c927dbde2193cd9c23995f23ddc7e605d2dcec484ead1ffc31c",
    "signer": "0x2b543a53037Df22B1c0ee10269ad909db144A1F6",
    "userId": "995163974"
  }
}