{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "374163",
    "entityType": "User",
    "nonce": "0xd897d2aab4fc03076fc134d04c94b0baa45a1d711f4fdf01234a1bee869acb18",
    "signature": "0xdad1346bf5cb3bf3ee13873c091e15b241600f0081f3d2b30a13510a76ff1e9c5c0c0d09d282ed7295859dc5157a1d71d80f74e9a94a329dbc0fb8dc9f3a8baa1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}