{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x99a187dac34d4ff370a1a12da5e7f26ca6055fc636470d6398b3464a86b00c09",
    "signature": "0x040ddcb2a51ff270e72708c493e66b18ce9354e10ce86bbcd91b14cc1003ed2f5c4bde60e76092a92d00504db88b70f0d33edbdbcd992efbaa3ff75484c8ad961b",
    "signer": "0x0598FC797642238bFb08593189CB8B4b21aFF411",
    "userId": "179352401"
  }
}