{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "908266604",
    "entityType": "User",
    "nonce": "0x00d155bfdcb190d471c30a2ae13c7bb87bc12995a47ec7cd54e271ec2dd834e6",
    "signature": "0x7a3687831d38c7328e47f849d21e48fe9232c3523461f6d6965922e88cda44311eecb5e0c935bf11923b9c0ec98d080c71cb27a59368f7cc6e819923585bbc6b1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}