{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451786021",
    "entityType": "User",
    "nonce": "0x07c23b210226c5037e3d1cff6df9f5ad8d1f7518ec19a587f7361f5b8e578024",
    "signature": "0xc9170f6c667503b69ca11444a2752d36b6cf6476fa8a9097a9bcac961980d247566d86eaa4c8a2085d77f6af00055726c408867ca36e590c912c26f55c25f77f1b",
    "signer": "0xF83f8804040D884fCBAcD57d4Dbeaa764176F931",
    "userId": "455502808"
  }
}