{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "902557325",
    "entityType": "User",
    "nonce": "0xb3642d1a1708e8c4051446e2a04cbd863658a46cdfbcfe7615e6ae641d1d3860",
    "signature": "0x743a348cd30dfde95b48619545b1ff909a46ca754b6df7d3b222f5624a8ffa9c4a2ab63a1d0571fdd105925e9f5c540e62bf9aadc33ddf559f4ce0d9f208befc1c",
    "signer": "0xD1BccBCb10e77Aa22B7fD24B221386e867E00097",
    "userId": "186951468"
  }
}