{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x4053dee9eff48e07a732a004aabbd5dd05c7a5f036ae1fb3e88b2a0650a6a98b",
    "signature": "0x660fbee986dc9b94efd1129f0207963f87e9fee73222a8b713fad3b4bc75e4d3222f7dd6453de24b4c321bbbe148e412c163ad0ad8c16a9ef12be585239e5c851c",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}