{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xec5c072e8de8494d3490a065f5bcb6f34cf8f1362731ca554894dd3e22c5770e",
    "signature": "0x8ef0f2afdfd499f9a90d443a86cdfa31848b3e2884f49f6dc4f82c91de017b8708945d6a7a8fba8ea02192f0e6e7459aa176c9cc6bda67cd9696323a9068692b1b",
    "signer": "0x2aEfd63D93E143ED5DF78f99fe3DebDEc6d51088",
    "userId": "466712647"
  }
}