{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485899",
    "entityType": "User",
    "nonce": "0x25d998b20ecec0bd44e612f76e5f17731b0c283d4633ec905d421e130fb1abe1",
    "signature": "0x338a822e05b8b75cb907ea32e15f072b5c4ff02a67a71a75894a13cab505af0e365b4130ccd9f14b09a3711761af20d0877681afef34d854991842d1a27d9dcb1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}