{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "266305231",
    "entityType": "User",
    "nonce": "0x12446671dcf9a657e6f3664a403c687f663e3e370d6182da15059f5c368dbbbb",
    "signature": "0xb825ac042fd143af51a68811967adc795dd920ee876621c4e39dba1859d986ca65481d0aa197ba30477279a0edaa250720b943f6c5205d9532b3f90b7d0754a61c",
    "signer": "0xb68FB6A5ae9015De46D9634e946c04517523Fa43",
    "userId": "134619804"
  }
}