{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "588471",
    "entityType": "User",
    "nonce": "0xb14ece3a777c01468274ee683db0949c934684f879b9698fd8ca445e84ec396a",
    "signature": "0x6bfa7943c655c44fce962f0d4f602d25ee7de852a175fd824a9c7e9dbda8a48f56addbcb74bd2922e828d4067be0b1f5de306aac69a5ac1691e936a7890427851c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}