{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xce8d3a5a4f4007c7119668c494dfc568933383de4db27873ddc55df629bac42e",
    "signature": "0x758292a3c9d708ec5d47c362fdc72b18e9ad5b3a864c2c87389d52b9a984d4423be467a62598e147224b0176822d8936a60aac66594750504d956801222d67491c",
    "signer": "0x54bC87876799beaFF396Caf61aE3186E8235343D",
    "userId": "832575185"
  }
}