{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "409990",
    "entityType": "User",
    "nonce": "0xa8e2edb9f2c36c9cd7ce02bbb4e55333307f54bbf58caa10de04deccbe9271fc",
    "signature": "0x527cf57a756ba24f34656c31165bcb88103b3d508db5b1052da8d3b5dc98ae8e418ea6cd2a44140a2758c61b6bab01f4d61bbe235854e0d04493acbc38da90c31c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}