{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508649",
    "entityType": "User",
    "nonce": "0xc8a6def9acc175b50e93be912d7bfb04c219afbbdfc393c3d4c96349a4128cc1",
    "signature": "0xdef4d48633399b56145b692382495fe20f657907777f9363d477a45c68a4245c04b999cd53a113f3182489f18cd9bdfa6c1caa8caf2a330d062650b2cf029a101c",
    "signer": "0x63762Ba099c2247aD3755af8aCb1d62705f0D5CC",
    "userId": "851444561"
  }
}