{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "458118601",
    "entityType": "User",
    "nonce": "0xc1ec6a8f390ede99673ee579f25e162ec51ea9f041ba7c92b8872ce3e558720e",
    "signature": "0x42f7abd912438cdcdd61be7b599a55eafc4721e3b574e8be4bd829d3134bcb306dc4f272d579064f80a6096db4271504f45020cb8bc3fff703b7b29bacf6d29a1c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}