{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "827803944",
    "entityType": "User",
    "nonce": "0x3e5bc5936885cebab1f0c493d2c237fc5bc3c7852eea861d4c1a234e80746fe9",
    "signature": "0x5ec39dc84b837b5756d6270085fb83c71d1e1ab8a6af00541b79da434550a9a751c6cf6153b9291d7b636ad976eb65075198d29edfb6a2ae93f5c6c470496a6f1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}