{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8527",
    "entityType": "User",
    "nonce": "0x84ae905e95ce837476ab83fe5cb95a8b64d8168cddd6becf6e1fdcb9368cb9d2",
    "signature": "0x111f37802e0c115d2658894c9b2123e583ccae05f17f512d81deb61c5e7906690fbe017f09119c36fbf8bf54786443d0982df5a970a36005ce9def13c3a359171c",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}