{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128548",
    "entityType": "User",
    "nonce": "0x63e3b2228bcd37244cabb4f781d83130caa77604ebd03facbc47aee86c11a38b",
    "signature": "0xaa4fcc42e42561525d6558c7a382f8b051f8fac2247a48fc52418504c4490a69412bb58eca4f28b95aaee7aa16e71ecdbb4c9bd40fc73c74bb3078fff2149f9c1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}