{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x13ed8020464e2d061ecba9deb3dc96396a9d75baaaeacac6deafb1e015c3efe7",
    "signature": "0x229fa8b0105454dff74a601b6a4a61b477b3a5f366badd1835b0bde9afeed1526eaf051e7bea1f62effea0f8cc3f69f2fe44d3505641ee83f2c1094dba236c7b1c",
    "signer": "0x498D7FA7326853fE1Fee3e229D38A97f4243Cd58",
    "userId": "281300041"
  }
}