{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897648338",
    "entityType": "User",
    "nonce": "0x9d7fa485814878e158779f1bf556f01270f6b4f5562ca6c0ab820c72563414ed",
    "signature": "0x0a0de5cd6f6105d24398c73e6473ac7914b0ae94c191590f748f0a4ccb22501f0baa568fdaf5945f7efa1b32b9553947957ac74c76ac6c3572d61d4c32a2615f1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}