{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x45e339174c82503acfa0b03764f6715624c2ac9f17d300e0bd53defe983d85c7",
    "signature": "0x4383ebec7e5d2d1d05c98886c948045ddb81168c49ad65c6d1cdce743676445d041eea73d3c08f103b8587b54e46640640d217aec2f7ca59af59312c0755f3a91c",
    "signer": "0x35d43F8F2BDF52629f041a6f8E24d71098998fd4",
    "userId": "561546129"
  }
}