{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57441",
    "entityType": "User",
    "nonce": "0xe1df2e4d9d435b81931957b61c700eb1edbc2d8f0a05a698714daf251d158b48",
    "signature": "0x760cbe49727ca03f3a6e8f020b7a143c12d78432ff33ebfd5169371529979fa075ff3abff2820d4b06a29cb0b087b39972c77dc8fc0e2ebe6caf269e908029f11c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}