{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83569",
    "entityType": "User",
    "nonce": "0x37028e6159a6de94e1cb4bc2b3a02fe79902e9850bb093ba042cd76f16603c2a",
    "signature": "0x6533b66a3e4fc4032a9d3ae5a928c547beca6f313244387e35e12aee57e1b1dd18d6600cfa51fd10d1eb8955de77d1dcc0475aba6c3121199470cc0bf018a4fc1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}