{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "109847",
    "entityType": "User",
    "nonce": "0x2449630f6ac53c1ff8348b6a0904c5c39d13fa6f7ae9dd1789db9b414f28abc9",
    "signature": "0xf70b1b2580d403a7b3f4b1e8290ed50f5e080f160d3996c854a5cf495fd395c73fb41037ec284199c3ac4be410473ac391dd4bc33ad6c9c1ccea9e37f44aaf421c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}