{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297929",
    "entityType": "User",
    "nonce": "0x1ffe9ccb16bcca78c4f38096b7bb35a604d5d9fbe501255489bb3600b5cbdd58",
    "signature": "0xdc2578b1645364c0cf93a0da5675994572b7cbb34e86a294ac665ee04e844c514eb0a77bd1dc029a60a5feff3e945eca08af6b1e1d411128e221126a974ba7021c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}