{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353625",
    "entityType": "User",
    "nonce": "0x521295c03c876438732b52f2e68dfb798970e25b62a92d485d452b2d0a9dee33",
    "signature": "0x78624fcecc36df5892eb974de263335a428b535dad5e4efab76df3ea182061ba198972b9243285995d2d7997be625a4d8e3b14375f83327d14841fd9ebc2f7d61b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}