{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240064",
    "entityType": "User",
    "nonce": "0x75bb816757aa8d8fec8850a670fd27d8269c2c93fbfb4ba71817ea6e44d34414",
    "signature": "0x59ad0a7492eef098873b20e74d6ebf4ceffccd9ef5cfbfff0148aff646ac4ed7471e856afcc58b145ad1f762ba4823f7bf2b8a29b2b62540ade1a7855c2dd8461c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}