{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x36aa4172f19bfea60dc70aa4e224426e86c6977baeb9df126f5c8175cbfa377c",
    "signature": "0xd7c6aabff67561be75b42e17bdae4d41b5010f9be52ff47ec5ad2957d9d38f8b774aae8076a43693e057e3571b23ed6cacc41b2a373161eacd886ac8d9e1d6361c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}