{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbda69917e74a06471941032b964d7cbe850f76326591a690ff8afa790b05fcda",
    "signature": "0xc776aaf5b8c7dbffe789645a15b1fd735b8547b58091ca9b9cfb40c57a445ecc529c7879baea55108acdc4c75c498f3ea6163bb5e3f980c63be50beb329f43461c",
    "signer": "0xC788A8E595e66f6dd40863AA97bFbC71c56108DF",
    "userId": "836056909"
  }
}