{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15642",
    "entityType": "User",
    "nonce": "0xf235958826b2fcb835e66492c05c03def9ed1d5b88c72b27695d579c4e2c45fe",
    "signature": "0x488a132e7e3692885ed2de631b5e053f5586fc5bcfb4c0e998b357d7ce9671c57f428c302bcad8b1afdba89bd9662aaccf261531febc1d662f613c01940b3e361b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}