{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "441301",
    "entityType": "User",
    "nonce": "0x1241c220efb0092b6aae45fbb8ac161272f18a7adb796125fe137a674d25dbba",
    "signature": "0x9d3b91806c5f4b025db0f735d301e2938809460ff5895540b5d6848cce818cd556804e45c7fef6aa2e6f91fe36215931207531cee8cb23ad8f1dbe24cd4e948f1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}