{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0x2fcec7a07cdeb5df13549885364c4ec80e991ac3129e885b28231316397a3b02",
    "signature": "0x2016d81087942b0201dd3d4779c877c28b39b0f51f0374ed4e2e394f39d8b9ff0c773f52ce557fdec8bdc356a587ae77972aa688cfc8898bb487bb9d0513b24f1b",
    "signer": "0x2FD379bc2FccFa5994b731Ee0ce76bb9a7e4dD34",
    "userId": "977155519"
  }
}