{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x9bc7005582594002b42bc3333d895afcbd7b09da8212488f6e76f3f129115c7b",
    "signature": "0x5e92e9e105d95fdb8218ca715d6a05812fcdf60529e917f656f584c2b062a20a71c0788f4dcde2a0d39017a27e5e2129ce577703d7fb6377b25989eb4f9da8531c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}