{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "207749",
    "entityType": "User",
    "nonce": "0x9958268ef054e4ba9e5b291cc8e7a0c72f7a0c730f8746e5f1ac879473ea2ee6",
    "signature": "0x5a13a4be16baa3eb22921336cca11d2e7411de2dcb29642e817004ad95664fb901e6cde603cc942ec726dedc022020c02b0c80c37444ad5b4971a7eef385e01b1b",
    "signer": "0xE1606Fda4793C81543febFfc652aC7aBB1a33faF",
    "userId": "457856694"
  }
}