{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x31ecec1bfc98702ea29e4b05d85ace838899bf8437d2f38f2a68c57d3dd22990",
    "signature": "0xb9a3db84b7f5d8ab8079d13aeff8c8a06bca062a05f12895ba8ebec2976fa4f25f8fd6ca2050fdcad1b250fdb9b70939bde3ecc183814ccb764c792b72ce311f1b",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}