{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb171a07e2d8445de4a3b88d56117323976ac37a42e445f9f6387209500cba79e",
    "signature": "0x7c3ce51cfc246c78dabab205bc0cb04072055b19322c226338cb55c2436c516762fb6ce7881f04da3b63c18a0da6b1ad9340161cd71c893293264cc511421c481b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}