{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348740",
    "entityType": "User",
    "nonce": "0x6f39038789379dda4188590e39967bc8f63be7beca574bb796f3b27882595735",
    "signature": "0xffda78fbb14d24b32d7c273bcf5518d4addfbaae421561e3ae7e71264e1b93ed28c76eef8b3bc27cb6ec8e7ea160d37f2817f66ebb84a528d43667209e6e12781b",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}