{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc8788edb8bfe57d8f99dcf2664ab2bdd9d341bd73e2de39be00163b91330e1af",
    "signature": "0x94735c460e4053b1f33dcc30e87901a030e200b4682309c0d34549f80e4cd0b12d9aaa6ddd3ab4799bd41e033bde4bef8f9d689a664e9209e62f076db0dad6dc1c",
    "signer": "0xeb659C0AAadC7D95b2916B5C02f97243820A3E81",
    "userId": "396140066"
  }
}