{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x5bb93fcdbc088192ae65d121532da0a4a98187fd4ec0e1af1cd847a9826b4bac",
    "signature": "0x2a77452fcf17a17587f1b36e4b009be077efd9ba9f5d9cc3016822c37aa96aab732dddd13276dc8a1e52b30c4153da84c345fc974b7bacfa91a1e089ccf245f51c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}