{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "34750",
    "entityType": "User",
    "nonce": "0x7a72fb71dddcc92b352bb3b145678ec0b3508ac172b1f584d2ef6efbf2d7104c",
    "signature": "0x7ac7fb01cf130b18ba38efd210b78a685fc014df73f6ff92bab0864ee5df99543a7afc1c15ce4b0a60da51985116c103b0f09d222428d12800382985705014851c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}