{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "713028",
    "entityType": "User",
    "nonce": "0x58c37e09dbc740dd080016e45a550c9c94aff96281c2e3633083e1bdd9c316e9",
    "signature": "0xd1b30e2ccc3c77ac72ef8bcbd3642fdcd8553863436d1f7f5d106cdb3b99f65d325110522e7ad68a58fdff1d41ba6790ac22cf6aa51a07b1e5a5ab31f74c8ca31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}