{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134242",
    "entityType": "User",
    "nonce": "0xa5dd59bcaf452ed5b5c89a2382fff0c215ef565ab5f1cd87246b64c58a3a5f73",
    "signature": "0x340db1a97b13cccaa4ed1c05c1329fcb6ac0519b13ad2ca8916c2d32c3f9383b6aab32e9813096e89b8e415e54aa62427d2c6b500c8e9e5b4f9303113e2dcf3c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}