{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37956",
    "entityType": "User",
    "nonce": "0x3d4254d2e363d8595d5a502ee2f7eee2e8b795207344e17333e138ec1098af95",
    "signature": "0xd7525a8aedc0c76955e803313f14031787f75aaa6e79094d02172bb268a36e8b5bd626d7850e3b39337b74ea9de12a7fec57fdedb8269b4f650bc3e75f5cdbca1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}