{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302827053",
    "entityType": "User",
    "nonce": "0xb508f3d286b5e0f7ef8d1b85c24f18b209943b2027c25014964a54783c506c2e",
    "signature": "0x3f73f6ce25a697e813dcb5d34277f2f9d46dd8ae29cc4d9c56ea5ab125fdc3a479597d947500b468b83a6dbcb3facddb83731ab00e235355319312276814ffc11c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}