{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74261",
    "entityType": "User",
    "nonce": "0x153551042d45a14fb3c0dff01ce868ac6013b245c5f81f76414bc2430324974d",
    "signature": "0xab1281fdfa562d2a41cfe18e6931f6f9274da7be9cc8e91c6d773434e91c8fbf751fe7648f06fa127b6516e77e31ce3e5d2a7f39711d3d1ddc528d3e2aae82ac1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}