{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128415",
    "entityType": "User",
    "nonce": "0x141de45984e2767d7326776b893b23a1513249da8c02af5724f614df31ba7bd4",
    "signature": "0x80f3e5dbcdbf61c0b3edd6af9959d1c2732d030a47ddebf56d24fc9dd2105f254e4282762f876b4d2ab901e59e1d6c545df2bfaa14221b5a87d2778edab5005f1b",
    "signer": "0x4905E9Eb492e277Ad8515096E7AdDfEAF2dffFc7",
    "userId": "529290107"
  }
}