{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322923319",
    "entityType": "User",
    "nonce": "0x1b4aa2048f42e2c6159767b3f7b1ae1bb7fae62c1d71a074a1e811b5ca7d06a8",
    "signature": "0xef7710d28783a322ccc442ebb4f4897800ad1f0e3ecced5c0413efc51b5eead81636674578dd2b11ac4940872d2b60cc9720ea3605fac1440c1bf0d9accfbedb1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}