{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0x47cdeb2e5c6c27442102385e5d5182d872fb9084ad27fb75ab87b7cc1ec96d05",
    "signature": "0x6f46a409dc13420496eff409743601a84537e99193483890a300eb6c8848729049f0cc51de14dbfdfcfdbe784be2bec6983101c31f6b4efc2ddab078ab3b3b761b",
    "signer": "0xF300c20BDBB459E009c4E55c08CFd33E12f8B0Cb",
    "userId": "782218508"
  }
}