{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "213759",
    "entityType": "User",
    "nonce": "0xe6028acce4ee3c4e8825cce4f32e52a26699331c834a0a20fa76450517e2f00e",
    "signature": "0xb65faeb618ca7a1a256f96da257f88771d7f1eadcdb445876f6667d83381fc5f5b55f52a1357df5b4d30856bbf9a692a4988dd410e5ad4edaf1b89eabf6f84601b",
    "signer": "0x9bd43c027DCcab5b8DeeBC119D64afBdEEe0Cf30",
    "userId": "351805183"
  }
}