{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb4aa26974862912cbaf0d9f3cea5f30617383873283686d7926482c57a2ac420",
    "signature": "0x11aa483bb44b5df504c077067cc98a6ff5387ccc59876b7936bf1a8814fd2ec06840b6ec28f7b7427222f926257c6d07d07544b9df497ca44cdae9d7baab42df1b",
    "signer": "0x2a3494ddDB5D34Cb2778C63dC6e5eBeF02071FcA",
    "userId": "280220384"
  }
}