{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1010740",
    "entityType": "User",
    "nonce": "0xdb7a245068d68c75fa6376047714b0e6a4e2425c1f8f242a7d2f4d7600c7d6b3",
    "signature": "0x2742a37fc2138ab3849ced8648b6c01c6e0da608f199b8f08f691e42e122bd902e5b91a20663ba66b3a48366c39fffd6a570721eba95f916988fcd8030de346f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}