{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11003",
    "entityType": "User",
    "nonce": "0x8e2f30af0524a4ad4ee486ae2122c0f878f56ac4693173c5bd689a22004cc19e",
    "signature": "0xd257050cb64548e0db82f1facbdfc9e5d82455f75eb5246ef17482ae88a9f24772e89a14b339aad0ec0941b284c3ee1f925a18d9e6e5fc373e7718924f3fff1e1c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}