{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134214",
    "entityType": "User",
    "nonce": "0x9e18bd14ca58f1aed8f9cb54953c1b09cb5d189d556c4bbc30c03dbe72b9ee71",
    "signature": "0x5d509ffdebe1ab7d5859776b74b84bd1e1338720b29e8f75d24c34b3cd1b78b52a170df172a2ce3125bb5ebd9ce6570ffa02e4f406294ca3e95fde318e44e21b1c",
    "signer": "0xb9d49A9D4E637B8aAb9bBEE6b60cf76c0c7884B8",
    "userId": "532466263"
  }
}