{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "475275462",
    "entityType": "User",
    "nonce": "0x88be832991e3f0c9632f1fb524e1f60dc91223fa4ca863b60b47b5c68137234b",
    "signature": "0x21f80ae32082e1eb03ddfd6d42e2637b977661e65c186fd471486ce0d9feb5bc47be6a3a52d8c22f3f206a3e2a027b38343bddcec285ef69a9a7a175a7800f931c",
    "signer": "0x2E09706d061Da2bB66d01F583c734E89CFCd23D1",
    "userId": "14811"
  }
}