{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52129978",
    "entityType": "User",
    "nonce": "0x184baa39d962e34efa01bb2d88df619cd9a23d40d58d28a6ab795f20e96d7c51",
    "signature": "0xe95bbbbc5fe7b5b2ece56bbc6668d1cc69351e3ae99df9d279e7f1060ae9896b77fb181ae054f55c84041a26fef71e2b4d7fd8f840c0ed3fec4dd72d503a31191c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}