{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "895209133",
    "entityType": "User",
    "nonce": "0x5e3d659d9c6dcbfe6f0955c4421eb25b222e68f4b01d15efb90a94fd856c33a4",
    "signature": "0x905ebdf9871ceb5f0b7e5e775adab29a7d5671879710221aa5799cfd879055924498e6562a221f37d7e9d36c0cb5e26b26a994308b33ce1f13c72513f6e68f551b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}