{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90660",
    "entityType": "User",
    "nonce": "0x88dfa2d66c33a719b47b8d473350c43c289755c71547c3bf2387d7cab59c8b60",
    "signature": "0xdb9c00f4df67565282f06432ab225745b16db740ed9af451cb67f75dd6ad1bca21ae29068d5be9544e532e2bed64596baf13afb3310af160588cae0d04a321a71c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}