{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0xd4708e719b202cfc9abe9d957da42cae2df37c2954417d578e9964edab25860f",
    "signature": "0x1974b38203799de4ece3cb0b02fa5842d1141df30e6689498e8d3764c2eefb575a4370217aceb156bf2dd8d96fad8ee280a6c79a0c652cc26239ce13eb17fd501c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}