{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "534",
    "entityType": "User",
    "nonce": "0xfaaed2ca8ccf3f28d1ec72174dad008409459bf6bcbcdd75765d67a6858449b8",
    "signature": "0x463477ca4738d8386ed46cc19b42cd8c23c5b9e5f38b48f0f89b1da571cbf0dd36cc2cd864b7ac4c7e88b4afe924437ad77ed531886b59aba2030aba21ef64981c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}