{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373162",
    "entityType": "User",
    "nonce": "0xbbc5ce0c0b076a363a4186b671303e21b80232251f6e693705f11afe2e59c32b",
    "signature": "0x983459c84c9341133f6e525822f57ea8963cf061f9ecefcc2eb72a9de2a7dcff61d555e749a09cb5c797b35bd48138817fd8b85326dab5f3e45a6eb9102f433f1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}