{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1",
    "entityType": "User",
    "nonce": "0x081e30b3339d1e1b6900f119c812e19adf6ef7a224c5572778ab13819a2ca349",
    "signature": "0xa589d76fd5911f9629d59a8b29f0edb4fcd3e6b78acf8a386e6c55072eaf09f32dcf30bb22137c4d554a0dfd79661671735abcea8267dd7f199434d984cbb8431c",
    "signer": "0x0CFFBAbcAA91e9B174412D9860C7200A8d57f6D5",
    "userId": "280503"
  }
}