{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xd1c5d06389816ab0f19714c8a165fe832f5ad3c91a97fe098c541f079c7b78cd",
    "signature": "0x25cc3291a30580c0f78f6c00312f2c22eee433e3a2493143cdc900041c14f16b01aed8bdbd382107e4bee6dd885a9b2d4b8320bd5dbcdfeb6a94a830c14cc5ee1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}