{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0xf8c8b9173821a7d04769e407688b696d5e5b0573c384c6665c2e99bd8f2832c3",
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    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}