{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146124",
    "entityType": "User",
    "nonce": "0x8541b2607b53a7da34b7e50365485ab31045ab364cd8bbc253e54d4ecf66606b",
    "signature": "0x369901a0c00a3a3bbd9478e50db7ad932b0af39a45c19256d717926258955e881e87e2c4e6dce8087dd352ddd9372d6534f54adc727172b300e121ab2187ab501b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}