{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x4568f2798f235213246b9e154ee8d6e2a9d4e77f06e542e89fbb43e2f795a3ea",
    "signature": "0x69ad4805db33ad279ba04751333283662cdb7e0b42948bcb8456f46d7e3205707e0cb2e7f91e7b6b592a4d40c3bb8b966bc554d639db431fcf739c5b9a25d7c31c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}