{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4563",
    "entityType": "User",
    "nonce": "0x9cc22aa738812295912de82416f1e7285f3bd48f46c8d1125c5aaab53a15d618",
    "signature": "0x49173a197e3395ea6eae121aa72c2e5f7930bf77db9139c5069ae26f30e2e1c10b9b60b31244143da907595a0033c415f73346e3ea81512245914c45ce64b1d71b",
    "signer": "0x5617e33979Af319eD3a9a6bFF820d69b7e8877a9",
    "userId": "171261"
  }
}