{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x234ad7d7f78ce6932476e74b36643abcc5dc3f2aea57a83fdae6a33af5d5d7d6",
    "signature": "0x276745b768b4d0cc1037ffd10311dc95883f92151aa5ed94763a126c2b350f320075bc7b918742e14ec30c16b302d744f0befd963a4ea83da0d0b1182cfb88121b",
    "signer": "0x7aB0E388CdD7CfDfF61F387e68b61be6E7471492",
    "userId": "668480302"
  }
}