{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104764984",
    "entityType": "User",
    "nonce": "0x6e237b58c8e51e225a064415dac84624820a1c180ee9fa6c90f965a0af313774",
    "signature": "0xa1c55ea9f1e211aa5660caa52bf1b3da1f10b98012cddf9ca4b4721756d0f9ae6171c9a02f57888f7ee86e9ca60c26fb35eaf4e0b7026f855f88ed5f574a027f1c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}