{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb110085a2f5cea23c7fa494a3372c615047079ccf4f7b99647304bae8fc96bc2",
    "signature": "0x91ecc138e0d3c6910c944382f847976b42023dc9652ad3b6a2b04a83d87fa68752f102cf873f1bb1339da3e4ec612552141e6e85338da03fafe243fe37589e481b",
    "signer": "0x88c6752784E00ebE1fF3E66200db5Cb25f618273",
    "userId": "82373428"
  }
}