{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8e178dc5b597969c803ce6cf513df8d4bafab7651d83aa94eea24f588cd1a164",
    "signature": "0x80f79ae800c8b579f4051ae457ac1dc0da076800ada7375c426c2d43106c0d066dc3662b74c5d06344a7f0b615e95b0c8409853ac37be26d4195a548d5d601841b",
    "signer": "0x18cb7436d75dc17251E18a4A58451F227FBD800f",
    "userId": "460533913"
  }
}