{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0x9d17d88143140ff94b2b89539cc8fb9c6c43d03b4f26a40cfecd299a32eeb972",
    "signature": "0x10f5605321f4a210ce3f2730663f2a42d3c614f986c6bf8bb383a3a4a2f06a70770f2a8cee9df3fecc4d2f08a9cfd967bdcf4d8355faf0e4dd8e3056ba3f64981c",
    "signer": "0xCA34537176e273Efc43776B70B5c70CdD5baE067",
    "userId": "403911835"
  }
}