{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319758166",
    "entityType": "User",
    "nonce": "0xf08445c266e3b102e7b4231c977e26a5456b039b02c569901c4f6058fbe7e226",
    "signature": "0x291c2d2e109bf7bf1e54c3e110f8ad067170164a6ee5591572f6300ff14d0d3c6f34d4faa4dab14f6798f005c7e54a820c99c0baca9eb506a61a839db4d7c6141b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}