{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "411106823",
    "entityType": "User",
    "nonce": "0x8f29599b282e1b796250750638d2e2f1ec2a2cb662ed9e9eaf5919c3920285ef",
    "signature": "0xc4fe385e0b4fb756313aa44b058f61b1196ee64211bfe6b4f72332dd3a9895971e23f2ddbbbf3b462e56ed5c428a8455b80b35c0addd4796a6b246affb517fea1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}