{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaf36c7fcc1c5c4f7ab95091dea2268d038fa3d4611241b32bb31a83784833010",
    "signature": "0x1bcb4ad077b0b0f2ae5a5dce1f124ec3ee21140dce7351632e6ca446696548706ce0c64605e49c7569bfe2552a6de87dc644b79ee27128222e984ef53e1707aa1b",
    "signer": "0xFD1DDB549B4D6048B9D18AD2A667AaEDDA181a97",
    "userId": "925194220"
  }
}