{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55609",
    "entityType": "User",
    "nonce": "0x5f3dab82af6b4829a60614550f788e2c29515aea5f7565b10658230cc41c5055",
    "signature": "0x2f8ed76ea03962b0aeaef4a5f2e97c6a95593eae942cacb83a7f867e03ad576254e8e194534a1dfb62bc48b87eb1320e362d03adb8b4a42dfece7946c1658ef41c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}