{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8f8f40382db851f54c0f12f7b066f440b7f7e686ade67baf62d2d9390a1c7786",
    "signature": "0x1fa0f3a33484bf69097b335880df4ea7d9cdcaabc53c3846ef71cd56a4fcfd796c707501405c7a1357ac8eb9d164f1a237972e632d193092a43b9d9e47f524671c",
    "signer": "0xd55a63080399c743EC8d333B38c69D08fF28c68d",
    "userId": "898469786"
  }
}