{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1460",
    "entityType": "User",
    "nonce": "0xc8a3d83aa636bc02d3f28da748090140de64242a2a2efe3b4c30920a7e229c64",
    "signature": "0xfa56674f9033b08061488f5f2baa37a855d2a8a4ef4fd0768a0be7cd2987708e0333baaafb6b870c2dde06e293e13671330c9cda776b0caac4b6516c3de7d9701c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}