{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174481",
    "entityType": "User",
    "nonce": "0x2261d3e78bff88067e8a96d06480847824b2f149a198e6785e8a2d89515e3dac",
    "signature": "0x8bab23d5196d8faaa35402342aeb52da2baafc2a281ed0aa67c690c0a582c10a2f435cb5ab619e140abd408befbcd21ca543f9142d24ee92c7256eebe674034b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}