{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "308059",
    "entityType": "User",
    "nonce": "0xd0283d506309181504a4ba3eb361333441b72f98ebb51530e601a718bb4eba75",
    "signature": "0xe25850a02aa4ed5b955a6d8a57208f20a45f50a753d45d12fdae83b37bc451b30afe537803fdf954a6946815f3bf31a54e83c192cfc0975d1ad931bf7933884a1c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}