{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "680566462",
    "entityType": "User",
    "nonce": "0x0ea04314e64fcd3cd21a9a463192903653dff5b41c39c65abdd6d95be5fbad5d",
    "signature": "0xa295179e847df55911af7256cc4cb8a59d72cc041e9bb07cbe26b0e0de7a8b187cf2bb6fc37f24d5bca4cfd7e8830e66f4b5683ce859a76a8d6aa15c14e34a2f1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}