{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "866636243",
    "entityType": "User",
    "nonce": "0x7a2608d2bd363ffd4ca79014caa0cb17ed1ddf7b01515764953dfaffb5d93a58",
    "signature": "0x8eec58aff87efb7a4a34953ac7e2a88d57c63d2c588fad5367e1f2e1afdd04616eb847724fdecb10a61bfddfef93005b73874c69874d426c587ed127d17a54881c",
    "signer": "0x3B15C1247a5CC34F846b88f0E04B262f39b05C1e",
    "userId": "563285188"
  }
}