{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1885753",
    "entityType": "User",
    "nonce": "0xc7ba75226fe8ce4071032b877f0d58d1dd1507cd57d0469ac338956b33e079fd",
    "signature": "0xa8af888ff4779e0b2b18babf02baa97b5b00ef20bb1f937e0ed23b2906fe7cc10155d55158020b22cc0f32eac903e3f7753e77ea47c5dcea8170017c8f9c4d011c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}