{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "411476384",
    "entityType": "User",
    "nonce": "0x2ba41804d6cc772b88d56ef62c4343fbd1566074f405626b14f1cb544496ec5c",
    "signature": "0xd69a3d50a4498522ea760f43482c91ae7d5e4a526b58410820c46c8d7ba1f9fa5c25715754bc9154a48211dcf5737ab9604e2ea4617025a56556c68d1870cb6a1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}