{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53710",
    "entityType": "User",
    "nonce": "0x1145ec39b25d440e9431542932ba655cbb5603dcbb436efa2418d656dc496891",
    "signature": "0x75a81e8de4cf6ab589f00191f343b5619378d989f396400d96dfe93a80b41c1a646f1ce12ce801ebcf0462acf2ddb3453cf68a154b0b0be61311c184e6555fd21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}