{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328404",
    "entityType": "User",
    "nonce": "0xc4e63247db84b5cdbe07ce19d755d0328e6c3f782636746aae9a0e9bd1bd6de2",
    "signature": "0x5e93b53ea867df2aaa7da3fd5c4ca0a28512e0b3ace4aa2f8c763d8bfd06a71c3b40c14080a7b2e9d642fc3cc095b0ce5a087bc0d3d35736960228b36301ba7a1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}