{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe9126a642f98e33debf63471d4d3ef76abbcb9d505f5a91eb7440843f3167504",
    "signature": "0x102b1095d3c2f861231f9a5117f83b7641d9fd1148e32e37700af17742a693473626df9d1a2b4026537f19334e99bc59deaf0b09178210b1162d6804f85b64a01b",
    "signer": "0x4F460968D233345D7d626d1F13019caE5ab410De",
    "userId": "853069467"
  }
}