{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xadc0e0b07a3ca72c13210f4d3513a8cae5a6486b38fbb2f9a13dfd7dcb83d136",
    "signature": "0x10aba16676a2c8d9eec22998e582df03a530072229c2f26c509868733080f0c45519f69d168b5bcdc8c09bba5711aba6c48c687ecca5eae34f740964c6a7ae641b",
    "signer": "0xC4e201BEaDD3933E76e562c99f9F367Ced3f68d7",
    "userId": "533673360"
  }
}