{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1545055",
    "entityType": "User",
    "nonce": "0x07dcc718a314e9ff18f6842b6c92f2da205f1961c8d996113354b1302763e3c0",
    "signature": "0x979428aa215c2d507892f1717c64a199844eaf89cbe0b70f3fcf9bc47f95996345d260a7c2fcce9e86d95a4f53ab6632a62db9573b34b9e211396096a44b58bf1c",
    "signer": "0x31cE923A8b73598247D8639D61384308dAB45c94",
    "userId": "338949331"
  }
}