{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x28ccd2cdf70fe16028d574d2924327d5728b7451c86846d7f1edfd4a5be243eb",
    "signature": "0x1b7b0f99607ed3ff93779466ec7c624364c29e32298b39e04349ea012055878a045081f75eccaa787f15cd6d7702ab7c843222871d45f49e3eb11cce22dd84441c",
    "signer": "0x809Db232a6131f46553BA571FB17bFA2cc58aeE9",
    "userId": "351386054"
  }
}