{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "976",
    "entityType": "User",
    "nonce": "0x268c56e5ebe42446fa1152082ef280425f7b4de9f1c7ccc636fc475a5d989fbc",
    "signature": "0x1a3fbc3c0d27cf3c0e50258456dea6ce5ca72b568e64dbd0f3f35492a1a25e6012576d87e5182959d98b28cda9f3916f142cc0fac30fad69bb6efb1a5b585f9b1c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}