{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x1bd9f86dcac9898d038df1ef6effd2e0ea28afa1c76a15d6bfe31e99b1bf54f3",
    "signature": "0x0b0b1b5f90cc4d479b0f21c7369c3b949c423bcd33c63a997cd999a083d1c8434e896fd1a7fe955ef5b407824ed94a56255872b973ecda1cbfb9d15da1db54671b",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}