{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2ae4739c5840024103ec92b4f7a410883443d512f05e4d3bfb705831a57fe6e6",
    "signature": "0x5cfcbc4121b69ba7012eb0ffa2a10a2e54e04d46c41ff85c50cf16f9ca7f3bc563ffc0fd4469bb15f17dc640515319fda9095c6f37d478257baa136cf9b049601c",
    "signer": "0x2eAa174f648269f4b568e7C847559B5Cd718eB99",
    "userId": "834575515"
  }
}