{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeca8e117c8e1b7d75e160387a475c92f789f0f12da23b4463953fcf59dfa015b",
    "signature": "0xc63f08a94cfeb19a59c0477fc34a4f8cf6287f7231666314a7da1e035dfec0a03648b76699e7dac74258440f268ba031c784d3e2859d5dbe3f67310215312e5f1b",
    "signer": "0x0fD53675296Ba254e21d269e6331Dd9098ACC40b",
    "userId": "952554685"
  }
}