{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67568",
    "entityType": "User",
    "nonce": "0xff3b604451b753a63018a76576f22b03c3f42927e4ad9d99f8be2987592e5c87",
    "signature": "0x4a076f9f5008e64c1b5c708137f29229f007f5a9b2ea9ef2cfc91be57168481061d76f7f9a0b8d5dcd18015e0daf067f77162c9e523f39566b9ea190c42bbcac1b",
    "signer": "0x7F88F4E4Eb93B3BDcCb20108296f7726D1eD38EC",
    "userId": "394672788"
  }
}