{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x64705e386b881c6f2f73cf35da4754ed2af79178878c472544575226606c7061",
    "signature": "0xf9b4b202c116768b4620a7380288fcd93eec41cbb80251bbc5751cd4e84da3da11927873c8a141b52bc6f8284a64648325d7bb24b1adc04b4cd52c4a0bb767a01c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}