{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8ac0bfe4e1b45d414946b7c064f493f83c0d4411f3ec891129b59df40562b32c",
    "signature": "0x806d24304eaec47f2885b5448e4e97e3a4badff41938d5efc352972a008bf9950193fe465ecfae07adbed865292e7cc86260c4a9581d4bf7dc59e87e21cf56381b",
    "signer": "0x9aE7aBbA237D5183082f4F621E093A36D4752687",
    "userId": "383376170"
  }
}