{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "858837517",
    "entityType": "User",
    "nonce": "0x11cd62a4fa6685bb496f4e1fad3150b84e5535c4832cef3287498760aad613b5",
    "signature": "0x5ec49c21b48c1621aedbf148f8bd5373fcc9a35a300ab0c23ba5de5b7a2e5e7177de2ed6e8500da1dca46b0db5ae952029b3159236ec89a7a8dc04679b91bcdd1c",
    "signer": "0xDd10966C68a9be24F1E39823E79d52E38370d212",
    "userId": "505581388"
  }
}