{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0x35045b169b8239c949cc2b0392a688b8a82c0903fac5482befc67baaf8dbb372",
    "signature": "0xa658a0c6055ddf421942688f60d599046238d078e8347ff93427aae0673be728049abf447191f106350d6c23bc786d19cce83c355ca4ee70c30ff7c98a81f4db1b",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}