{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38785",
    "entityType": "User",
    "nonce": "0xe728a383d68de21a6df081cdf37618fe87de822e3671c12fa5966636fd0ecb99",
    "signature": "0xf6e86083b885a24f3f9c284d0cf2a448325b784a2c900712bc1d514b1e921e66795fedeb96f97ccbdb42372d796b6da004911e26f51eb7d75e894336d8adee911c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}