{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x62ef1b917f56b9109b4bc80aaab44da747b608a66726407e8acb386834a7c02c",
    "signature": "0xb5b91b6ad7da58cd307f29c8bfe7d1ecab0170e8d1aa886ebf3c2973667ed69d61b958125491d3f517c7f3cf0660a735f2a139b27015137f0f825f8c27e66ec11c",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}