{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "295993",
    "entityType": "User",
    "nonce": "0x688b240782010b02a46a415d1f8aac16bbba951d9e7071292af38a3125dbe88b",
    "signature": "0x936775ec14378923b454d19f505bd3056a424f9185a5cc8e4765e0b16514212579b3bb0161545be05bfff7cd4d2381497d55c30c97727034e9fe7e40595dedbf1b",
    "signer": "0x6230b5bdF02333c0180266085036F2DBb9977d0D",
    "userId": "570701364"
  }
}