{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53861",
    "entityType": "User",
    "nonce": "0x50a0804eb755320e6689fb770efec0ca56731cb5c06ca54013dbe4259468334b",
    "signature": "0x4d46f1dcf5816d0d8f8d15ccfd95d0b57ce1348d6ee54e6f433e85b8785635e7460ec68e0c51f0f60b3c273c4fe2f6855da4ca9ec288a70261fde7f5bcbf04281b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}