{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325172820",
    "entityType": "User",
    "nonce": "0xbfc7e5e1eb3e4362bcb69a99f99f5d7c7c5471e7bf7beade8864824457e56a5d",
    "signature": "0x5232f50d07513066164664bb63627e50738258ba04e8f85ca5e83754bd51ecc5164e49dca0a290f0801f4b8ff1b925f1c7874721a2af9e471734b15bfb05ce891b",
    "signer": "0xbf95c624D4d8F1b87cF50ed2099946E11E158D6c",
    "userId": "764248678"
  }
}