{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe16cd98232e72500d2502c816ad30b79a52600bd922414a985b8cf59681656f3",
    "signature": "0x6f87d4620fe8b3691bef01a522d9402bc9ad34e57b27c99c8c62e44f49b4a75440e74e1e4dc892a3f0a9a28150e293d5d55c0a12ae2924e3c23e7f70752e0c461b",
    "signer": "0x1F80B2f8b42B7a228a085479aa74F27a4d79a14D",
    "userId": "64586191"
  }
}