{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357273",
    "entityType": "User",
    "nonce": "0x2e8385bbddd65e2da7353601216c4fa9a078df8fa12688e726abcf6f52c2acf4",
    "signature": "0x012e6aa8bdb5f903976995d9b0abcfa3e4783e13d3a5d2aae708a0b9d88720b17191f114ba8e0e5433d0e2717856407aa6c253f9bf9015ab82649043c8659b551b",
    "signer": "0xcdc1772589e70ee6667FAaC93E3F0CcD5BFDa2aE",
    "userId": "354908"
  }
}