{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104430620",
    "entityType": "User",
    "nonce": "0x523cdb74a02ca7e675eff8cbf578887f08c426397ebfc61309d4cc146c30b71f",
    "signature": "0x73cba2d8931b5f80f09c6b6fc7d8c966445744931998533ea0b5cfbcce4af78c106419b79e2824ec713c4b76305bd061454e842f66a435085cbdc3d8feaf84321b",
    "signer": "0x17dD449C895B0Bd0695f18B39fc782E606c2a10F",
    "userId": "718782552"
  }
}