{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "205511",
    "entityType": "User",
    "nonce": "0x3f9097a213a18f87de3109db78c9a7ed236c853d1c6e2c785bc7c7d8535a97fa",
    "signature": "0x3832f6a2b814da246f4cbedab5622a18ea6f24eb6595046b61427744936539a449b7baaf1d0de6d004f99f9b78cbd8960fa6ef730af01f44d424d9ad5f3422661c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}