{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139809",
    "entityType": "User",
    "nonce": "0x0b22a87c723f0281f9c0f1e72359f3544a68af61fa2735b94e677b1e134451c0",
    "signature": "0x708dff44545ff38698011c100b75682af47ff32a7025ed42748dcbcdccf6caf96435dac1baa32c5ce976f1aeb8d882545a311dfba8c2b6eae50153cf083e97b41b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}