{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "279",
    "entityType": "User",
    "nonce": "0x8b1e50a68d66d991f9e33862bcf20a88bcb5cb50f6d9d6c71e5d2df36deefd2b",
    "signature": "0x99e6b44c1d2bacc80ae4e3608d0c172274091206574685b5df4be841f37fc51b295e9d2b7cf5ec2a848059ca43de71c4dd3613f29eb85679fa5f7213ce3124231b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}