{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189807",
    "entityType": "User",
    "nonce": "0x38d919ef65d228bc2a4e08617739b2907992ecc64a05a41338e84fef1ec83a3f",
    "signature": "0x9f4c9595fa6594422142548fdf837e5258d6c16034faac29d2bd148c13de6d4c28bd3666dee91d2e91d7981ff819b61fde3545daf8c8eb72ece065b6d74a68dd1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}