{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x954732e75e74735282287d9c064ee8db094206f1fd3a27eb39c6e64c29104456",
    "signature": "0x0d076204f75d1a0071b6635f31c6ff026f4847ff2a587a80319702df958de86c05b056b503e4a9a655d2a97e71520b1d18f332ff6b32d84bcec8a71be70860341b",
    "signer": "0xDd2c9d2D9FE2896f0cDDDe8FA8894c2c51d2a589",
    "userId": "203576373"
  }
}