{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149763",
    "entityType": "User",
    "nonce": "0x0508d6ba60bdf172585acc1b1e81d27ea08da3ba2391f25cb97154f625057c4c",
    "signature": "0x24c49f53e9e1b885dd4f1363a567cb2b36cd29ce4db48d1cd5962d139650ba426c3da09716c16adad81604b55b9ba800c82b0c2f84e8c5d00233600abe9b81551b",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}