{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "285143",
    "entityType": "User",
    "nonce": "0xb2e2efa59c36ee00a44b9bb768f3bbdb632e7176a7ba10b88ab9e39a7609861f",
    "signature": "0x9dd3b8eb4c4da6dcdb4b268cc15ec581aa41b2fec5f5597ac8f40adeb5f72f8f4d5fa044b6c6ae6d7dcc654662a611e472fd62dac160c756f720f0a3bff038e61c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}