{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16564",
    "entityType": "User",
    "nonce": "0xf2766a81365c48b8d0fe902fd34673ea175bba4f82210dbfd64f6a7a5fa19f6c",
    "signature": "0xdf0e7fe146f8d18e950e01796c6e4ea2ef5dcc0c6e75eef706f29a41425f1f807def38e9245f85a1e38cfedd1783de8c9f1d2e98174bc6ea61baa046fc30ca261b",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}