{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "715475",
    "entityType": "User",
    "nonce": "0x66a79a144c5cb411394c63ea716083fb1476395ee3b12931c6cd73aab0f85833",
    "signature": "0xd564428e5b1aab01bc64dc5a1ee1fbca1f1cd7e65e09722c8e999b809eef8f620bd80a1c1ce530aaa39aa779d9f5e0bebec2969902aa68e1ef87ba33bbdfb9dc1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}