{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17301",
    "entityType": "User",
    "nonce": "0xb4c9dae93c8f0f5269c056ff0bd2366b28f49306682d4311b21c3917efbb8739",
    "signature": "0x637688b4eb130bf4155280c33c02a6ed0453b29b32f9a265880761d1559ed8ef65748cbb74d502dfb955dca3a35ee2f7b254f87d1623a64ae704291bd1f8aa931b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}