{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x6f40443fb8390cdc043ee080f26f9e476d514da649cd253da609be4a2bd36c7b",
    "signature": "0xa1e6520fcfb681399127abb92b8c10b4f3f960980534bb01a43abc81ad92a94320c31147773017712d13a9ca6fe4454de158c5cdbfbe94aa364376c9047125a81b",
    "signer": "0x57fdEA8589B64C2ce0A1d0EAA0e7b63CdAB15d40",
    "userId": "51616172"
  }
}