{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8aeab5dc8de6192611bda52c08084edc09c1e73d5225a858d2c186d65b1b7a9c",
    "signature": "0x8309f61d7eacd527edb568b129a005c05e532101fb60da6e154d429ffc082f4c52214f68c5efa0eb5a692a566abd9f7b71b69e5c2ede3b70cada990267f731531b",
    "signer": "0xEFbdED17B2c3201ad341604DFa0b6174C562Cb05",
    "userId": "951908954"
  }
}