{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xa766b374a1c8e30753483b9b0fdb88f907a0aa79cae58bb94650e2861c97d24f",
    "signature": "0x931f6848d88a42907eb946a6ed99a0bc73f82d4dae6bd07a7b29728acbe4f7180b1816252758158d0d765e81cd34116edbba574ec4e2de0b5a43b9c446034ff51c",
    "signer": "0x4611Dec6A3065fb4F7A23A8F14C1c300A8Eec7C6",
    "userId": "650714154"
  }
}