{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "740883",
    "entityType": "User",
    "nonce": "0xdbd03e946aa54e25fd44938ea1dc845f6aeb279484bd8f8efaad04e8b1694773",
    "signature": "0x971bb0b8139eaa1a0d2703f8757ac67a0782e3aaf16db33beac0176f2e617ffe580e50e10d6d2de949d1a94c8ff70705fcea5f282c28d163543d5d3e3cde1bbc1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}