{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161353174",
    "entityType": "User",
    "nonce": "0x77f38512cde8b601450c773b8c18f06f942e5c1203f8b2b3200fe7bd5ea6a300",
    "signature": "0x2c6a71bc3e479efa9e3969c6f91cefa1ed2dc950aae78efbcbf1909a8915020355f07bfd4030f66c7307be535f7529ee9e19eb86d71bf9c378f26c4583bbd2ee1b",
    "signer": "0x775bA7FB8a4FF9354c099465ca493BA949FdAca6",
    "userId": "597677270"
  }
}