{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "98700",
    "entityType": "User",
    "nonce": "0xf9122cc43b158d14d088bbdca2b109af73dc2dee46ad457b637f22cf8e3fffa0",
    "signature": "0xc0ff3361741096e103cc55f9b1e8aadc8a54994e30be396fbfb60f36a91971413d6c5f9950a0a635418d4d456f1f2b44b39893e004afb6383956e65ed512de121c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}