{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe7bd82660ba13009b00b99aff1003a4a136f2001ce72939f68427b542cb99e73",
    "signature": "0xaeb537fb54958136c3dd8e4ebcfbc7db90c8dbed1ff046435cf40d367389bdee368bb563ce4d401d1a20f54148b8c51fccd2138f604ea0df9e756d93a3651a441c",
    "signer": "0xb5d16B9ce655D8D4c665F349959e98cdF9F8b2F4",
    "userId": "840180689"
  }
}