{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5881d561e01ed4a8aae03896dc6f10ce514640855cfcfef9832c267089823166",
    "signature": "0xb3c315b5ecd6f2fab9e508bacc61ba6a0c1be7cae27def8f98f8279927812d2e29780b6d34bd6b1e9fd3d3f0fde08c2a2a6c598ca4f1130b7e4d478d68df36751b",
    "signer": "0x41FF0e9C13C17eAa53E74Cba28CD9D9101440565",
    "userId": "854095053"
  }
}