{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa34099f415788b89559d40644c065c53058f630d45d17077bf786e6e301d66f0",
    "signature": "0xf85bcac85ea7c5be190ad2fe7440df172337235f1ec7979a84dc682ecedd210d079b7528e926811df902efcdb3e63faa557bd656186e90f2d939eb64b23e72261b",
    "signer": "0x757c58fCe9FaE9f25A8a5c582D0ef1ba83c2e60B",
    "userId": "849991810"
  }
}