{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2b1fee7d7ede70dd8909376bc6c06de5450a3bc238ef6863e5ae1decab69582e",
    "signature": "0xff56badc2037dfab55ffc2def1323459dae0cdcd2f4d4a581cc28426b9d5b65f30ace3d032394e52a052905fe0fdc4c12d506a77f4895c214ecc907cbf8405051b",
    "signer": "0x68E5EBcBB99C8b9F3a5570476BE0a3D85d1290ae",
    "userId": "235912276"
  }
}