{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108340",
    "entityType": "User",
    "nonce": "0x9b3c306730f57b58afae54b57a5476c0fc7e927f389c2341204bfaee8a5fd942",
    "signature": "0x4a76d97b6bba985513893621bfe6b379351bd32a1a0b18c1c18d78df3cd83d8005c4a18fe0929738b1e3fd3cba3b2f815cebe60389f2e9e347c7157daa07603b1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}