{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147893",
    "entityType": "User",
    "nonce": "0x0572cf4ee450ef83e349a2f76db2fa2a6344fd2e0883dbd01ea9af69fa25c9fe",
    "signature": "0xf780151df60c75ce87d2ca7a765e3a341bd8796f29e4f69bad83cbd0ffabc03e521f922843a260f4d99870dcc3f52a94b713cfc6cc1bb7ba9231609d6f5522c21b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}