{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "527997908",
    "entityType": "User",
    "nonce": "0x0d5febf6e24f37b75f312de35cc7c73a20fef199136f10bad9594ab4296368ce",
    "signature": "0x9aa1d424f45fcf974ac8d0990c5c323ad41553b68b53fdde6bcc2efda4184e2c48df772ca8effa354e076299c20798087ec65aa6083d2a415ad334d5dcb0bdef1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}