{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "288873",
    "entityType": "User",
    "nonce": "0x7f95f804b97ad9b93a4aaddab6db0e01540afdaa83225f89bdce90ea682554d1",
    "signature": "0x21eb70fd3b7e9ea117ee24bc487a62c9cb050a96f3aaaf5b27459118b126378b6c38598e3758ce33344e50b3f1af3f0d30cbd0c9ae238b9a99e69d1f0887bd5a1b",
    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}