{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135799",
    "entityType": "User",
    "nonce": "0xebf4c79736208f99b9a351e2f45e8ecdaca59eb9bab2c10423539487adf3dfea",
    "signature": "0xd256c2497b7bbf46e948d946bf9b05f2ac782fc47475c26bd030652dca989faa216d4205e314c8fa2f26ca2488e0085e37eaf48073c7376318b63285fbc159d71b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}