{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53571",
    "entityType": "User",
    "nonce": "0xea9edee9b5d5baf97f23cfc843085814838bd1589eeb683bcac405aba20e7c92",
    "signature": "0x9e9414164fe22eca12a616b66608d1beec0162f1f1437f1a5fc5f1faf948bafe6e3e28c4bb2839931817b7509a54597daba4920b666b295ab3e2e300d4b79be41b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}