{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5289",
    "entityType": "User",
    "nonce": "0xfc4da4bac4a6dbee87632ad652821283b23a7bb179f12c8ddb2d88871255d5ed",
    "signature": "0x937cb2917c680e5cf25da59f6edd4c04b1fcca9a785b2e4deaa3e644ba36133c2af973149486a998e3f0e32912c21e02abe3f831dbb54db8558c8743b0feb0ed1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}