{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48340",
    "entityType": "User",
    "nonce": "0x4cd9f823d6ca58316552306fa7fadb805e572d75fe1a5f7eb5ae572edcf66906",
    "signature": "0x52667cc518ffc8a9b78aa812a85cef30d77824e68383f14bef93950e1d96a09a45758e34090d486998af3b066fa805e96f3c398ccfccf3c759199b0a3b7be46a1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}