{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175425",
    "entityType": "User",
    "nonce": "0xe02070d765fdc6264918cc9ef29b3c640255ff950d6858829b5b93da9fe9d9c1",
    "signature": "0x4c8f00fee10ba3686387a00b3154b6e4e5b36bfe653cabec8866b0b8bee1a769715a0a6cb2b7fdad33ff9e8169a6bfc8f75e7627edc4c56203373ff3a7cc2d361c",
    "signer": "0x606B9dD2CAdFd5EeB1Ca78C6ce4538ED4e7Df7E9",
    "userId": "54633718"
  }
}