{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44175",
    "entityType": "User",
    "nonce": "0x7dda1df238d18c36630b1b667cb4421749b79983c50b15242457534fa29f2859",
    "signature": "0x1b5f3e79dddff43d8120f4585aa8a1de6a98f874b32eb3e149e6dc2af908fcf5719fece00882de69e3e0c9be7194d3a01f135798190a1f9b64e3a053de13f6801c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}