{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215335",
    "entityType": "User",
    "nonce": "0x5306fb6b6aed02ffea0355d132a0fd795dc85c348abdad0ce8060d8371e0a85f",
    "signature": "0xa2bd56eea7d08c8e0de077398847dfaf23bd86c82f570abc0236695081925e211435a625a12b429ece6c6bc9ccc78a1ac3d041a5a30eceeb723bf2215e4ff49c1c",
    "signer": "0x0246262E4959323EAC2FBf603C6D24352d57Fc51",
    "userId": "700531000"
  }
}