{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "917996003",
    "entityType": "User",
    "nonce": "0x9a0efeb95fb21ee0ea94bc8ee683416079a94d94a37b112078da0adff3191039",
    "signature": "0xaf60efbba00ce3640acd97fe8b8a73a9a9d4baf17280cd33121b7e15f4db3cad61099a2e673611dbb28c0cb38ccefb29dfb99d28371ca0e01ef06d45a8fa09451b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}