{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15658",
    "entityType": "User",
    "nonce": "0x6886e8eb902d469bdde3f6577b02f5d7ead8a88700808e19fdb0a3e56f5ad68a",
    "signature": "0x4cf34618a4667e61941ca8f5d597f5204e774f73b5a00262c532d39dbe9233145ba80399837aee0576866a72ee8b9a72d14a8ba99a3d030c9bfa7a19152805eb1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}