{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xd2120f95b37d9e5a174182784a04a8872b424d0a46bf50d4661240307edb6cdd",
    "signature": "0x57ffb83d3f4a1c2cfcb113b5b32bbed14141501b47a624433d87210289dbbdd41fc67f92983ab26b8113e00821575b457776b754283fb9b06bf6c9939092ab261c",
    "signer": "0x6015AC6ad37b0328C10a529E70348751FE8ffF41",
    "userId": "176201"
  }
}