{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345582",
    "entityType": "User",
    "nonce": "0x470f7353112fb5787729e78629b4b35b0c5b33d413006832784ae6048f1d5a30",
    "signature": "0x4d9d3e8b91492d760321be37fa64bee7905d6771e1e99c834429e97db13e69b816328dbcde9b5cd7648733958b700fc7a20a7e687a2c66a4945db187745193551b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}