{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe4a42546711234a0f9b7cf4e77c5c6cc1c9fe5fe9eefd346eca10283f967296a",
    "signature": "0x983af54fe9c6892481d06c29cfdc465f800ece32bc1d6941a61e7e48d445b7f156e88cd8d16672addfa489ce2806590d4b658704b47926feaa9bc4260532838b1c",
    "signer": "0xBE1d5FDFb2CE474A3f7f1144aEF2F8EDE22d61Ff",
    "userId": "108816633"
  }
}