{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "700257899",
    "entityType": "User",
    "nonce": "0xc7a8d0cbc6953fdc7c0c1482a4ca93b131b7bbcf6e055ae945b5874a7489faca",
    "signature": "0xccdca518285cad8efca22f0f05f419258bfa135f1b78ae863f233d31e6b673fc7c2206bdf8dffdf65155e6980622a29fb543b87d034a564efb6d31566b6370911c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}