{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "953668529",
    "entityType": "User",
    "nonce": "0xf9a3b05f5198aec2278e49f635af5369073e94507ed8890c7b9f95f4351c7524",
    "signature": "0x450d39437ab740288c5b0bfa5758203c68075d2c8033b44f0f46ee1290af5840733c2186452e43b783047c55c046473c8605d2e08990ae5036920790fb3e31d11b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}