{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbaaa1de0ac5b7dec177bbeb55e25bac7d5da798895dd5353bfa82d4861670ae4",
    "signature": "0x2bb851ce8715fa78893b4dc8b0ed45bda5e3b395932936dd370315fae8401d706dba06e15ce0b3f5fa146c85fd8e09ed9fc2d660dbba052c2961880ace20b9791b",
    "signer": "0xda96A17BA0D35C1921a9252fC5A4e1C7865f4e35",
    "userId": "421395845"
  }
}