{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51449",
    "entityType": "User",
    "nonce": "0x0b69df58137200e7d66af1ca83119fca3a7c306ec86c6153803c6ea7e498d235",
    "signature": "0x825000da0097133b792b938143797b2609db26bc1ea9499eb4c1e89d8259a8dd60f9995347e11e39df567410bca00c1e22939a83b87908c3901c6f869b68e0b51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}