{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "241801",
    "entityType": "User",
    "nonce": "0x33ca9ac2726fe2b55d1dd70974d18f101cc36d45ecb20a3461e280ac96a3b59b",
    "signature": "0xac9b4b5930cefc57df591d48711953c7739dae4ea35717b580b8da8482268ad82bcb93e9cfee4db40f8edf7fc25ff7a5120cb057758087807e9edd2019d0326c1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}