{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x66170e388d12791fcc4b3b7d6d821aa5a5ed745825d1c961b2758d6966273fc3",
    "signature": "0x99197af0140340520477de6146203742f28a3f97f543164aa85556fc8837571a3c93ba7e185fb085b26f8b0dca93e9f692013fdccd22f102bbcc2d66f56fae451c",
    "signer": "0x2b8D92f48C5333a5517611C1D85d64517F01Be85",
    "userId": "52707343"
  }
}