{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdadd0b5ef028bcb9e56cc5f85922e25171935674ff22e0c6d166ecd544bf9a9c",
    "signature": "0xb55dc1687e862f151b0881dd9b6f6c747474b0c81149331ea4dc5550bedf8d4c1fb5702fd0e622047dee35e13b8ec171b52686b48d5f6ed2a91f5af11a4c74701b",
    "signer": "0xA1126d3f1652629109D872d1aec07Dc2Ef6Bb6f1",
    "userId": "354350915"
  }
}