{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854498636",
    "entityType": "User",
    "nonce": "0xbceb22ad5a507df2079b1adb3a9ab504b687081018fc48475e7e116d12d8e4aa",
    "signature": "0x4d51a2d5e1df9495334aff6c95b99d25b0625a4a2e9ff910262a441d34a4d06c2a28138370e6face1506eed008c2b535e5271458eed7827a54663111702cde891b",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}