{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x935403d2af2bbd632ba742639a83e546425e574d5a10808d0d50002a5fe3fe18",
    "signature": "0xc892e98f665df9de04c91e73c7766ce81191245971a0dc277ffe41b9f6249d7b2f8f51b8fa2f83ffaf59b7794e5c5f86ccf2588b6e716ef36216e4e3b03dff801b",
    "signer": "0x1a1f922FA34628C623f6841142A7b2e240047f22",
    "userId": "495478149"
  }
}