{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x5c7763af82dfbbf21612eaeec02b571c9a907f0a24240bd81ec17ea3adf8625f",
    "signature": "0x73fc507fc36fb2d694b2f5c8009ee9c1c163365b92a29c0c121f2fce2f5376d95ea68d5ca85d2e92eee93f86918a483276ff6ba1e21dc646929be1a0d69b658b1c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}