{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "908266604",
    "entityType": "User",
    "nonce": "0x237bda695cb678050e023da1f78722c162d44ffc546bd8980f0516631b7ef64c",
    "signature": "0x8baa1c01f3f30a31c62e24101af353ccba01baaf5e23358c259079bffbb269107c6ea84ea3d6df9a7ae17330d997e6dbf59bc1d4e17f8e84091ae62726b50de31b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}