{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28312",
    "entityType": "User",
    "nonce": "0x9388f5fd9d491d1f8bdd687a031470d04a2e9f9589e60071f81d60edba892095",
    "signature": "0x1bf6d5453eb7e2dc91365032bb87690ac96f544fc6063eb481a321c1d144aaa53a6e90cdff4230a8e0cbe6ee631e1741cf4455e2fd2201dde982638926b6ad3f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}