{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1037367",
    "entityType": "User",
    "nonce": "0xc0191a34dab46e1c979b4059c989c77172b90d29e33293d61399bde7a0099a79",
    "signature": "0xb8f1952b73133bffbf00552b7b736534a338b596d7a2b2a9c56351133cff019f48d450afe8806694c99cafe6557986878ed77621208b899280f7e245ffbf552f1b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}