{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "169149",
    "entityType": "User",
    "nonce": "0xe9544e915ace9446bbf2d3736f31c31c7bd8718962cc66c1304ccd7039a50e87",
    "signature": "0x3694d2c2fdd1c038841fe518eb79e9f3b042a0c242699a2a59fd206dd3c765633bf8f048b752baf7da16d416aa457a38cc4188bc97fd69a7463e298e70783eb01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}