{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xd40a4a7ff037d3a9023610d47b34c2b04f1f80f7ecabfc3732b44e21330c2697",
    "signature": "0x35f40f97df0b07408cb3ba3879c583722759e959bd46c76d72de7a01ef6ea78f70d3d87e9b7efb7df7e2a11f1a2e486b79a6fb6381fb93afb8a23706a0850c4b1b",
    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
    "userId": "328056745"
  }
}