{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x09951aba465ea03a844a6498b76fd393965f289713229a59de467adae478a4ac",
    "signature": "0x89154ecc47f158a42a68b729311de0a3227fbb1908b6b2911531fbada2ed3fd018e6c405701799a6851a02e8635a607d88dedcebff1bd0096244c4481e4aef271b",
    "signer": "0xC05bC994769C4E8F8471A31532c67d07c5261913",
    "userId": "955611374"
  }
}