{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148293",
    "entityType": "User",
    "nonce": "0xfd17cfc37f4dbc65460aab26d6c34c7f5aedbaf95a5986a39a7b0374379c081a",
    "signature": "0x3f7f461a7f70267a866b7b75c5ba720e3b38469c5d4190526806d89a1b5ce2c656203a248b9894b9624d20887664e3dcaa0ada59b5682ec5be78ad5380c1213c1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}