{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x4d0d26e2d3a683b6720147c5e8dba4e4f467e02b4586aff9d0888d56430beb77",
    "signature": "0x6836fc93ca22c58ba78934055fc7d1c129871c551bd176ff50b17a7298946beb54c30df066440fc1be759474a24b43483ffe76de4d67f8269357d40041e424871b",
    "signer": "0x12302E88Cf971407d5bdd167b1AA2664556D3385",
    "userId": "68176371"
  }
}