{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfb70eda5c163b3bbc4a825e83b790162746b62174cd70f6c8b9165ace9ecde5f",
    "signature": "0x12e0dd07da004b9a4b0122d5f2634b342ed8059c8b3fbf98038d6fe0d14e11d13414a44e5d5de74847fe276a6f3ecd4a82db33eca63bb8b1dbb77d263b7969c01c",
    "signer": "0x20Fe395061E06851Ee416aEB147c690057F23af4",
    "userId": "748892693"
  }
}