{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0xd9ad6ef7f4aa7a59cde7de3b5c96ef9b1a70ec33aa52286341dbb6b566ca129e",
    "signature": "0x20c0410bc758329eaddb1dbe8c8cae52fca471dcba02f0bed5ec144b47f9d1c56f5354d307597fdd5aafa8e4bef9ed70a5432c2ca3bbaab0e0f54f40c8b0b3491b",
    "signer": "0xE8Ec1bAC66ca573950B30a9B5Bff2793f9CC5C29",
    "userId": "734516636"
  }
}