{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183728247",
    "entityType": "User",
    "nonce": "0x56263d81cd752a470dbc74aae0f3d4291d97cb595c9786ebbe597d289ee80227",
    "signature": "0x781eaafd29d5adfe6b021eb0da48bde81ef8ba151a195d3e2192b619caaade2b0104ea8c6b4b0ce2b7223baa3b1c961366d2679f85cea35983f44084672a37691c",
    "signer": "0xbC21900d8f88d750CAcF48dB76bE331d4b454f0a",
    "userId": "161995802"
  }
}