{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4510",
    "entityType": "User",
    "nonce": "0x59b59595937d59fdbe034306b4ffa747779267d2ca9ab9ab7509057ec50f930f",
    "signature": "0xf09a9085200b1b9e8bf43529afc26e71c8f6baf9653180fdcea388d35b75f6ab457b722a382b45fc3f7252807039f71df43a880fcdcc2e46ced57f633d83f1381c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}