{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "109639",
    "entityType": "User",
    "nonce": "0x4dd3c44d1711dfeb914d9ecbccdd8e4eb3862a707acfb5b0dc3ead455f9e3f9c",
    "signature": "0xffc09423df6f7031c20b29a7ddf1e3baa4a48a0368970559f2cce3404d58094017d5b02dcafc454bf14a466cb5de4603e3cf5f4a0bbd51f95cf5de5e87a73dbf1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}