{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141863",
    "entityType": "User",
    "nonce": "0xa4ec65153bff34addf063e08dc8a38bcab0ab4b8ac10a3c120a689b5e3eee48c",
    "signature": "0xbb12d967f2f745ae85f149fc8f87e74788da7da3b61ae9c114ae9833a042cef70985026a703058f47f80597063e5711fe67c7916d2fa864f416d3f1bf30291161c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}