{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395416959",
    "entityType": "User",
    "nonce": "0xadd7fe9d168f82ac5f43b15c40f01fb1ab015560a94d5c534d51e2b5e7ac90bd",
    "signature": "0x7fa143762b43a7becdb2fbde548caf344bd75783fd228f897141593cf251a6c420f94fcfd2e4695e7fdd9d54107d512c165e97027830d6a9e884b9af47d29aa21c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}