{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0x932e28ce9acb3451499dfc15453114ee60e6a50708297f2b360f133a4bed4268",
    "signature": "0x6c7192df274882bb5f90714db9cf6dd677df41e8cabbfe96095c810ebc1dfe273a8f1f033f444f224e257a02c139334f4f6ac82df0801683bae45c098ce0a5b41c",
    "signer": "0x0282346A7cbE9AD4E926935610080D74D8587c10",
    "userId": "345932992"
  }
}