{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0xa2b6f68c1d790f82b415b41489d007e69c0ba8b512903b75dc55f89200fa7b5d",
    "signature": "0x3ac2a4d7a077c8fb24748f70f6dbdadc09bbf2564ab5fc05d0490b9bfed0e14f473853f6eebec88c7c1b14c51d83eaf8a764b179debb8161de78a207cc9f90571c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}