{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136610",
    "entityType": "User",
    "nonce": "0x104fa7f8d205f99cbb851ec7eae1051ee88187323ea11e54d35d72d16c266ab2",
    "signature": "0x13210a4fb24e5ef06cc4cd482b994fc91b77be9a4f4069413343633d9a5bc9865bfbeab2a6ffbf1175ed366d40ba095eca77066652993d878d9bbcd9baa361121c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}