{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "820486414",
    "entityType": "User",
    "nonce": "0xd6a60f7f539034581b9cb782b75944c57240613804781a6d440197e8d0d80c73",
    "signature": "0xfcbeb03f54aeb2b391f8cedb7ee57c02a24569fda25943dc16fad29f0d379a8c00e756b0103c021b33f6de553d3afbfbcd6f0a4e6f8d77521e3d2b545bb3e3711c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}