{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xecfe38c89c53bf7915e023587186724cc9888cf2e46aa898e8deff4599b8a7b1",
    "signature": "0xca871f3c566d24c5732dddad981171083f451d9f3218c88860a3f262e8c101b7699ae8c89e6d17b15c8eb873604853dfc3a779d442b2fc02d0887a71feb5b2a11b",
    "signer": "0x1d3665a84dDa6cd4eA57d9b66E68602902cc0365",
    "userId": "922728721"
  }
}