{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcf95498f790604df0171d8f917677c9de35e34e7d27d1b980e9dff851175d757",
    "signature": "0x45676517bdd5ee42f8d9c0779c5cf9ed6e5e43a5c0185101c7f78c6c5cf353c96e019f2d5ea82b327d6d62430e029ac03ccc8bf3d9e7fe5df67501bf063163971c",
    "signer": "0x6B9b16f42DDDB7E3781E54F27748eB873219D173",
    "userId": "723186160"
  }
}