{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2631",
    "entityType": "User",
    "nonce": "0xd5ddaeaa43603a87a1f6e476d9a5bb608f1027b980dff7eb7ae7cfe62a2899d8",
    "signature": "0x6afa8d58409a8af2dc03afcb42951aacb5bf332924791c46a3f01fc589eba61e38cd43b885bccf7542471827eb5382e3b5638d7e6e39d4ea6212b76d199425d01b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}