{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4141db269431a04fec8bad14f77b33618d6e825cfdfde29c8c6fe9db89e63bbb",
    "signature": "0x622c73514c5541bdda73910b216f4feb017492b8d47c05900a3cea68cb7b607c3161e91ddced2102ab93d267b0a7f9539cd7049c28e7f4878b286602d1d15e051b",
    "signer": "0x96c3f8fa8AbB9d8083dA474EC6559E7F70b62C38",
    "userId": "24675509"
  }
}