{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4532",
    "entityType": "User",
    "nonce": "0x7a5e08e9c6b0312726812c55c2b40c48bb219d5d9bf594f5713149fce6d5e431",
    "signature": "0x0d55f73961f78d667bce575817577ffcdd474bccf393006f97756a5456054a691cdfa252658ca94ebd9a21334a91c50c6fe597a559a67b26be2355f073b8a9101c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}