{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3169",
    "entityType": "User",
    "nonce": "0x03232b480a49359bd08c37b702681c4c08ee329572126314a4bba96fa57bcd84",
    "signature": "0x05f774ccb17b0ea64e91017d77e61673845f58db81a619ccc0cc3ab4473889533fb6d0af78b8a87f3d65d6658f7320a28ccf755738edad225bc0f74fde56b9e81c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}