{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "391096",
    "entityType": "User",
    "nonce": "0x1f25506d73b15c5627b31bca8215c5b40c6713bde41f67c06e13c40a88965714",
    "signature": "0x9a579f4e05a9fb9c73d45d781f036dc1e4a54d09ec6f73ded68dc2148d7da53465a30ec95aeb6234a7a1c64347d0016c5ab3d9d9a0d7b091ebf8650fef960f4d1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}