{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc4eab0fedeaf137ff2f9be0ae5b0b275d0e1524a39ab7873265e1a9dc44eae84",
    "signature": "0x5d4cef85d9ef227a2dabe6279942c61b83473b3e0f521d6de2c5687c2a8c4d025da4854e7fb47ab788ed2893f15a66ea1d4dd7c42315b99032ef78c499db8d071b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}