{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x296290c75656f9d9f476e9804206a45051cc3949e447170f92817adc40e3a80f",
    "signature": "0x33260bea1b5f6a9e2be5e598266faba1b4b8a54ff3157966eaeaa9f9c8acc40b5f35eed74b895595e87957018874ed19bef8296a38e4fad388d8274b63d12e311c",
    "signer": "0x336db6de61ee78116Fb73ee8844a7d15B359a5c6",
    "userId": "186911295"
  }
}