{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xd786df6241484b06a86b636e1b8ad37499192e10f42df64f336f58592fbdc23c",
    "signature": "0xd90d3d996b273b504d6c18bca037d8cb82030e92a608428562c6c0a3e14931dd2ee09eec2e8537ac5a358ddab5c5fd69a11c1444695ba84ee5a630497643ab3b1c",
    "signer": "0xf3eC8D1463A23CdDd8e3137d4e971DAD05FB11ea",
    "userId": "451435291"
  }
}