{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb0dace6ca3d3147f3b2d5873b752e4fc3c93a3c0ffe899f0eae8e5f36b67bb4b",
    "signature": "0x5594683907b38769434713e05a31b88a5f239eb0d4d20fd314fc1fbedc99622c608ab0cfcf716030f673b954c1ac07c85632df45e7f347646b2758f283f852721c",
    "signer": "0x4729e6Ee8F891f455E353268B7d9956Dee811DD0",
    "userId": "533458872"
  }
}