{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x88575922e1768b77ba90a8b8f0df6de8226da95919e7e659994f9355a0091fbb",
    "signature": "0xa29e19c53cac4d69fcba33f2c4a61906ba3c764d4a2c1cc6e3ec56456f5b95510873718d3154d280936c78ba7a6a9c42fddbe609c87fb9454ed513d07be9f80f1b",
    "signer": "0xc11D28404f39623f2A0d9D9eC6D9E5e4C8e06fEb",
    "userId": "563998093"
  }
}