{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "905225261",
    "entityType": "User",
    "nonce": "0xc5c0ce126a9bee1292f60461918d88098e9e733e48b904d1c747a3e713e668d4",
    "signature": "0x4a4ef110c9981e94795e0613b9372ebc54a6f2878c68c1a335f09651e270c37735431ff2e455a5f11587de45aec4763d8d46d7f35439f6148e035b5a7bc793461c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}