{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "241207",
    "entityType": "User",
    "nonce": "0x0561e9602e11676f91377f04343679f46520c77f546906a91df64a9094e7302b",
    "signature": "0x856f0aa03d95622845c880202cd7420f14ac5226886128931eac2d57ac934d1d69ddd0ea1708308b8f2925e3f3368cec8e6eca9bcd72b43219df5f0d176e455d1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}