{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "495013075",
    "entityType": "User",
    "nonce": "0xdf9f4e37fab056ed371192c85a5075bf8ed2c329e4d363c00bbf65b37b494193",
    "signature": "0x92704fef7e8309e969b04866c5a75aa75256f3f038ce132471bd29fa7588d0902aebc177c13b6e5dcb65b347627b054ce9bd5dd4f6633dab04b581f2270cba981c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}