{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x71445b5ad00a7fc15a60dadc4695bf1bd4d614098c6f58e4dfd4314b16135c43",
    "signature": "0xcee81b6f478d057b983359d3a90a74617922a18513daf9af35baeddab4520ba11ddb681377baa2cead96eb15e6431be95dfa42bad38c701484b94585be39c04e1c",
    "signer": "0xABf3f4FAfFf64E1b7d8991E33cF7EFe06FA0EA0C",
    "userId": "577896582"
  }
}