{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc4eb42b8ac122f6aaa66110400d80213a5d60fe2f16cc1b14dffb4e30f20e27e",
    "signature": "0x823aee80d9904a25b159287ca1479682e791f83aeac0eb5dd1415461bf27aed567c2ff220b30295c24293e85908a9b04789c18aca015b469d80d6423448691e81c",
    "signer": "0xD55b9624F112bF851f35FE0dAA82310811433335",
    "userId": "434677441"
  }
}