{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "464580",
    "entityType": "User",
    "nonce": "0xa2ca19b8de578363099f497b104ef3b49f48fe23504944561e835fb147375891",
    "signature": "0xdbd84a26133b7d3e553bfef814f9d6fcc142a0f41e97ebd2ab69cc87740dc35c547a3f3aa49fdaac20c27baa8f8f0400753c68b8ab5639c6c817a81cbd114bc71b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}