{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x483abc11a1ed985f64b9601ed26e709557863e4f0acc5f52802e4f22d65d7c18",
    "signature": "0x8e4985d80afc43669549b52c6f0ee3df8ba385428551ccced8e9b27ec74754d42acd69ac1d2bf5dafa34e0cc956fc31b61bdd1daa388716e8750376a90551ef31b",
    "signer": "0x31eba27Ca105bABB3B8590b9A71b07C6d1e7c747",
    "userId": "406716751"
  }
}