{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3f29571d43185ff3512272eb885f4529765302c06d319b1c313a5ee9c6293452",
    "signature": "0xb857a1f33e9c1849a9a02fbd8feb1f87c5788a1c76fc54adf3a0a2d6e847845146f27e3a6b555bbf75196ce2baf2908b293e1b7892e8e9206ad02645dff325ea1b",
    "signer": "0xd71b259a9aF69123a75Ba7805f06985aD55f5643",
    "userId": "734066857"
  }
}