{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x365150f4ae7d05a6891ac96a32d3e4e0000325bb011bfc6a163f5b8ca222e97f",
    "signature": "0x4d6ec8ded9b1417e5afda3cc21e0bc61d8604723a44c40a7dc2377562652ff67385208f294797e68306ea6cdcc8c9d05bd51c0cfec9c1d1de74725e7e3d9bf131b",
    "signer": "0x682672e68d8A09C926D8a93F5ffa96EaE999A9d5",
    "userId": "318244892"
  }
}