{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134943",
    "entityType": "User",
    "nonce": "0xe394d53903be846b6bd9c4f5248b891e958d9494e2b47461debc0af4e7b2cdc2",
    "signature": "0x873ec3b9d6654363e69a869f1c8898cf7abba1daf0443147fec658c6846aac086f811bd19e314d5fda26c17c20f795f36f40a622f3e7686b0fa46a437bb745ad1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}