{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15511",
    "entityType": "User",
    "nonce": "0x3f896c36414d3a09a25d1175770f4e64ef15c57dac83c865c5f2eb5e8ee1b3f1",
    "signature": "0x76e36117a46a3fc8938b968444e259e751e774a0e5c9c696a5aa5ebb18f1f5b92d2310632288a7e6f203cc40d9e68b16586927a917ef801c2bc5c719e079b9901c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}