{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489026160",
    "entityType": "User",
    "nonce": "0x98f0d692d345e84e0a4269b43ffb6e38d587fcef8f088711605e9a3dfb495e6e",
    "signature": "0x349f989efccbbfa15b844b9e035df97bb608fb9c16d9be34928996bba4f052e04858439540ded33d9584ea6f698737ea84e6fb8eeb84723f83d8110b3157c0211c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}