{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "782362",
    "entityType": "User",
    "nonce": "0xf151ab6bdb3e3d747da98a64fcb739f39bd6045c31413f475e11764d237e50b6",
    "signature": "0xb45e8d7da06d3d5b47e62eb26f25e0f2e646ef057ed61a500f8ff1a254b18027722ffa7c63867ca76c5ebc94c55205745e510ce8509571450c29d4c8a28b5da71b",
    "signer": "0x038f9CA74f1De4A6D94d94c4C354E1F5B11fd38A",
    "userId": "453233591"
  }
}