{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xda07ca755e8b781174d8c6ec8f66be4bbb4b5eb8a1706e1bd2292965acd860ac",
    "signature": "0xc67e86c0a67a8cff9777d9f99b109b26dc235043e4fec35b02b90573e65d8355687274d7277f90cf584a4a590ed9b42f0eea1a8c13347caccd6dd7f7364416a31b",
    "signer": "0xe8986b0d4D0BAA7EE152d3E1c4e18D22467fD3D3",
    "userId": "375412395"
  }
}