{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "331788639",
    "entityType": "User",
    "nonce": "0x6f8c1ffd45864c3d193ca8d9d637b8cfe73ea104fd6f5bea34e2c48943560b34",
    "signature": "0x7350fd92a76f8b32f9c78e08ea395841f1f447ae5299791fd1a3cc47b98f4d10797938cec3f4d5c73cb2c5d4ea5da847e4b6a7e343ee3c0290e4733316586a0c1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}