{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaa72a81c2029ca67e4574bbfbbb1c4d0e04e330829d540d8c744bde788abfc72",
    "signature": "0xec9185b33993eb93fa10ebe8594339908dc347e2af078468450a291cffd3c15a50d511484c6d74697e00df4d48d0edd29bc698cb357618adb20eeab16601eed31c",
    "signer": "0xa83d4ac0066b45ecD1C1F35823505184E4Eab23a",
    "userId": "628005908"
  }
}