{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2691",
    "entityType": "User",
    "nonce": "0x957e53f0d29ecfcb6fe144195aba015d0311a91dcfae2467a60a96379380fd76",
    "signature": "0x4462c9979d3770940a15499f07c141449ba437441997f0e1b0ff86c6e3aab65e7a5a60bc08c1ef30b5d370d674f5026c9836d7014bc8d5b9ed2af86bf118dca41c",
    "signer": "0x451d1Fcc610ac6c427d570E73Cb3641Acfa23b6b",
    "userId": "134623867"
  }
}