{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372695",
    "entityType": "User",
    "nonce": "0x75922325bf0a233e9ccf97bacc53f9cb2424401b6e77282abd7ffe5c2a605d9f",
    "signature": "0x544e63459730dc870b36588e7edb5e911673352ed5c5717badf93026852603076900913e6b008de3a5917e5a23386cd27125bcc0bf7b2cf5f9f1a92d448ed2411c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}