{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1495091",
    "entityType": "User",
    "nonce": "0x4e3b6661e5680e3e42a46f9f56e38ea4c5d2db7989655d5e0f138a7253a727bc",
    "signature": "0x49ce2f3a82b851cb3465caf0fe1984e3853372e39e7dd98985640ada99abcc1a7db9a2d09ee96152f0bf02326e68695b3f1d717fb7ab780e9912c898095324c71b",
    "signer": "0x1C91270aF9483550C16389c0d10F0a9e72fAA407",
    "userId": "451779920"
  }
}