{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8d34d59bacd718963a4068e1dc24b042ac2e9e4e73e1a8081b44b7c27098c316",
    "signature": "0x9b836edfcfe0df7958e4df3ce9605365bce7a33fafdcf4b095b94477e08a86ef52ccb40712a1f3236cc279eee591744fa260ae5d54e4a1c03688a7192873ac581b",
    "signer": "0x771bbae27Fc6f24a233eF22C89d3a255FBc45c45",
    "userId": "691786789"
  }
}