{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "904127043",
    "entityType": "User",
    "nonce": "0x7a755e2675ff6b67bd00317ff01ab8e63511a3e9b8539d2901f70f16fd06d5c0",
    "signature": "0x93434053180c7bb82a64d83a42f168c5ad39dca1081972aa7e84f0896bdd642133dfdf22376a4a79d15eb3664eda367ef2dd3cace7ecdf4bd87344fba8a3248b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}