{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129104",
    "entityType": "User",
    "nonce": "0x7e566d683a1c6ae820a3260b25329dff4328f950e0f655b468ff329b940493c7",
    "signature": "0x1cdaf454077eb427b65bbc2d3d46bdcf872c2d3e0dadd70e061328d9a4aa2ab34ee61b4202c5488b7139391e022f8d8abfd3a109e0d211eccabdbe608dbe4efe1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}