{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "811568402",
    "entityType": "User",
    "nonce": "0x55b50acc318a6bfe3f605343b162dc0f106042806d60b57509d925ce859796c3",
    "signature": "0xe00720e8fe272ab3c67a2116bb978f561bcd1d9a1cab4efe1d1ad87183e27b3a68e1027380af528542f39ecf0d0ef9d8ec635b720765602db1f690000b6f394f1c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}