{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "440529736",
    "entityType": "User",
    "nonce": "0xda00a8daddfd55a87e2ea3fbda9e25c39a140506132bfd3c6b654e71868c3b63",
    "signature": "0x7bc3ff530080129d80f6d16fedcf6eebc27a363e489b6fb6a21119743ff3212a267346ffb6c0350fe9e4949df839543fadd87193652bb505d0f99786fcb6dc3a1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}