{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311106",
    "entityType": "User",
    "nonce": "0x3d6219fb59050507f7df4bdad78e42481f95355ddbda58e765a04e43bed09f9a",
    "signature": "0x43a61ed153bc32d4d5ab30abc6ed054672de6d17a3a1f35e70f05eb1e7d1acfa14af9ce79b68772ee3ca9baccd14c2cd70913f5456a081b9bfa0a3f61d85d02f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}