{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104012",
    "entityType": "User",
    "nonce": "0x5c45fafff64c80b236343c6818622d74749c15a811faf42c633d5975f691d492",
    "signature": "0xfeb08c7b8b758926d5ba74235079be5eecc54327078014fc0318c18319b8974804a23757f3ae19b506d4de2c9ad5ed2e32b772c14c4871f8a839d2b7da1bfa371b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}