{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "809108453",
    "entityType": "User",
    "nonce": "0x73d6896621768d6ac4382d5ad840205a6c19522d61e8fb82f3c4a0cc0ae6c970",
    "signature": "0xb829923cb7a9368f7b44e19f049a1a101fe08eac07f8988185efa06bf6d8bcfb241b873c34f1deb22cbaca8980c51f12341072243df19474e7293c234a3a8bfe1c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}