{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "986621",
    "entityType": "User",
    "nonce": "0xfd2b2be8431a0fd5696f4fb12a11e911788e8d2dc5ad911cba044e7166488567",
    "signature": "0xeca345ec0a8fa3cdefac4c68bf104b69350d79bc05e040e1180106b97fbd41bd2568b2aa802f4d0c7ba4fdb83e0067cf06ded24465c7574cdc8786bd71667c511c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}