{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x2903daeff3069e7c013b93de9077324efcba3dfd9f4ef32887b0cda1f1b34b93",
    "signature": "0x9403be63818bbe74b7e9da44c358448a118d72c1abce567db590b1187300da0b5587d74c8d8bd56b32a424021a8c5e1d30b7c7d1dd2825ea0c3d5b3949e484871b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}