{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354001",
    "entityType": "User",
    "nonce": "0xf13042a32da0d9ecdf2f7fbd3b31cdbbd0f7334f7d7d63e7fa7defa746f9a541",
    "signature": "0xff8382e565510c2b97e60e7349041f06e92ec5aa6cb63250deeab5ea78e9e40c66ebc2a59c9190ca4961362a68b507bb2325898485a244c2284e5cbc0bbf367e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}