{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd88b6c2c5bf09add851e0757b52d8faff5f8a935c40d5328cef75c974a63c1dd",
    "signature": "0x7d7376bdda6e29cd3b33578731c7b8ef63b28268d7afa9a5ab8dd32ab4057fec357c17d3c257463de4e2c91021d14c0216d26ace8db32c98ca8173afb00f31dd1c",
    "signer": "0xDA5EF39662B4ef70B52C25F33b5637165C93DE3c",
    "userId": "479039338"
  }
}