{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125706629",
    "entityType": "User",
    "nonce": "0xcb60c7d688dfaa8dbd865aebb27004300b6a7cdc7be02d58c3b6ddfdcd899ea3",
    "signature": "0x37b01cc3bc4eb658593412b329490fa1b3ce775125fbb755dd50b27b3bf5ce6a291e65aec0b91d8e031fd92b0312897f6e11273456ecb26be5b0f29af443bb6f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}