{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x759f17c226a816c1cf9731f3392f1859b47816dce7d89d040801a6252b2a1366",
    "signature": "0xc0259cb59a3848326a1f69029ba91da07a2b85d62ce641ff24db7393937114e21e82d9c2080be56f3d8339adc873f66e42556160c795bb6bf18cf3e933c04cdb1b",
    "signer": "0xf8eCf87b568E4D9C6f954cF6B545aEb0cFFf2AEB",
    "userId": "981712903"
  }
}