{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08f0db328241bf7b6103acdc2a27214b908f95a9653cae9a7235a734d9893046",
    "signature": "0x71c76c9d70fd0c4fb6e6a712148e31bd052d5b42c3b16ede51b0fdce492628051c9605bc6b8b1dde56be783001afe496676099fea9444f7d598905da5159ac1c1c",
    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
    "userId": "54958731"
  }
}