{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13891",
    "entityType": "User",
    "nonce": "0xaa31753819d1005ec0f0b361994993327e4fe735dcd47e378ff5cb97ca5dc051",
    "signature": "0x91b2e889b1f33a04414301fb74acfe9174b829b801d682234db68c760f35210757ee910678264924f70866ca8aac881a48766baed2d91c3cea959ec00b3c85e11b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}