{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428941685",
    "entityType": "User",
    "nonce": "0x3338245a2cbd7e682a3b49cf7e7c6c35f0fef8401db660c020231102997d2197",
    "signature": "0x47aafea081678830dc69b3057802af5ef79ac67cc20289beef74b0c1ff6b92a0074b2762834e19e568acfa51ded4986687598ddf5f0a22bc39f5733b257a388b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}