{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152331",
    "entityType": "User",
    "nonce": "0x5a490527562437236e745f9be87bf3ddb4510b7629d386e88111083a048c6581",
    "signature": "0x7093d2854c29db783727aaceefc8a944ae8237c0bc742f2d8575cf727f7fd5000102e4c574a3488b44f62110517cf1f3afeaa882995a7dabb23ff7598db9420e1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}