{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe9e41e2a28b4dd4e90a6458dd3beed6ed9fb11564f5cf563863bbcb09c68cf18",
    "signature": "0x1861d901c5d82ab72506d48fe712112d00d0901a6332136401396b6eb267f3355ce4a57d1d55c3da7896efe008736a8b80aea5f6ea06f425532426f9b5bc54581b",
    "signer": "0xad430E05c9B02189c988498849C11CFC0626798A",
    "userId": "355821525"
  }
}