{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297007",
    "entityType": "User",
    "nonce": "0xd5f00f2196a5becb7a40b0a7d8d7b7db30426ba92050e23788934f38350dd431",
    "signature": "0x685bacdfeeb94eaebf66b991c4ea37da95a0004ec7969383db2b93aafe3d17013a9c60ed0d284ff49e829be21632b367c58613b32e4cacc7ee799660f853da3c1b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}