{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3a701862a9da8f2c28145e157bca3303946e1fb117c00c72075046cde0308cce",
    "signature": "0xd6e043d36c374ca830012302cd6759207fc2fd20fea949eeecc4862cd5ccd7302a145b1c3a558c32581cc20f0e8d6ff67a3384b081b880faab36f0e76af041ad1c",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}