{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "112663",
    "entityType": "User",
    "nonce": "0xb83050f88ce1bda7ad390841a44b83b072f3dadb8acb0cfa55e5a981b28e4266",
    "signature": "0xbb6b98a586543675685fdeb4f27bd48afd898824f81755ff8a975a3ff02a31de6255cc8185fa4ca73030a2980c1a4b4308a284f09655259edfdf22448e0d14741b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}