{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcca59b4bc30510a65f2e50737fd1335079a574c421e1c061ae25ebca35256979",
    "signature": "0xddebaa1c12cc4b96adfab40fc816458cde9970327bdee4fbcf92fc4bab6fb6ea1991e1ce72a33ec86ed40b169e7650fa7683e776da6a425736240ca6e27d45401c",
    "signer": "0xa85dce385eaA369F6073e0b6e242561d0870425C",
    "userId": "308558165"
  }
}