{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943748539",
    "entityType": "User",
    "nonce": "0x95b4ed5da7ba2fb150ad73ffbd5fc8593af24bfe1a5dc5ac6717aee00a439a9f",
    "signature": "0xb29185cb76c5a351f620c1fdb4dbfc332d1497ad9c055c27c32d9bf3104a3b771aeedfcf1f7aa46741903e63a165c6e00e46d64005d46f1163a39ce20792857b1b",
    "signer": "0x1A0e34aBD5374BDd677c5de4D5D9718089cB05Eb",
    "userId": "644286186"
  }
}