{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x11b6b39b20d3f7c90eefe3b3277be5032903bc9364dc8110861ddb57c2fca882",
    "signature": "0xc5ea9bb89c9e937dafd13b242a835525c68ea137c3d8358b3ac615060dadd4e3265eb25bc94d90476c92c35f421d1c63cb9e1face524fc92487ec22be56d951c1c",
    "signer": "0x1801a170c1eD9867B3079f30858f587fa1D0fF3A",
    "userId": "566883717"
  }
}