{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "195261",
    "entityType": "User",
    "nonce": "0xde467296cef7feaf3018e0538dd4ba8acf4adf3bcf8750b1a7113ba80377af54",
    "signature": "0xd7d8f43687d7423ecf147164c1de7e45d38cee68ab1280a518b0a2a38f7a2b4162f8acc6b8d4096f39386b58b41d066344e7ffdce51b3d254f2ccd2ee0ba4a2c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}