{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776904",
    "entityType": "User",
    "nonce": "0xf4ebf1f2b59bfcf89c9aa6082c35de0cf5ad2fcb36c1c127b6b4f5d3563073ed",
    "signature": "0x2369b74b0cdce7dc097159e78e846626275d5334a03123f8e6237b48d79cc64e01e2a3780914aca2950367d707842424cefb2df87a29c0805b261a02249856ff1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}