{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372589391",
    "entityType": "User",
    "nonce": "0x70eedfd63b6f9fa06f56e64908bea211022e38184d4076c6ee49d0024e15b2ba",
    "signature": "0x3d21cbaeb7ee7587b574bb1ab999df1401f2121f8564e9457310415e8aa2223325a56156a00e306eb5fc9acf6076c3834f06aa704ea67dbb4f9519025a7f970a1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}