{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6627e853ec8fdb67bc0fe5d70aafadb8115fc65b7104364636aed709ef832a6e",
    "signature": "0xb9154ec822823947e7ff3027f57675e500ea31ff1c82f9ec288b975e6245426250095fb7b445335e5986a2d9c3c1518af1d2ac3a61abee4a9eae92b70fcc1abb1b",
    "signer": "0xdEA0024E9e64A994075cB4C61d7c05dc66B029E1",
    "userId": "74180663"
  }
}