{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90136",
    "entityType": "User",
    "nonce": "0xfe55a747dbda97d8e6556241f106e3f5d8ee366295d6972e4dcc146564e6964d",
    "signature": "0x22273191f94b80056ee2b92cdc72ab9e0737083531126873d0bcc48f33126b514fbb86cf044241c8b03762f18617b8ecb060a10d83eb3c0b6cdd4fb81ecc2d781b",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}