{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283535234",
    "entityType": "User",
    "nonce": "0xc4a500da412f158ad468e76e5302579add6dd3267c56e67a730cca62e26c235f",
    "signature": "0x553c7d3c3b806c95e0ef1060fcd05fc914ad7f884a59a731fe02a712b9de15203b9aad5428e0201a7462347d082c24110b83eb17fb051a329bf168f6f0e4497a1b",
    "signer": "0x730D61884359389d8aA22afeF2b83FF4F7c9ee63",
    "userId": "342017819"
  }
}