{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "290909",
    "entityType": "User",
    "nonce": "0xb055d003eafcd6b909bb1ab92f85f536d193006ca22a94b0c5cf826728c34579",
    "signature": "0x5be75a9e60ea4ea0a136ba073f5e7cc2e12da98daeda46747cf1a69769d2c9dc0a2f967ab19808f8a5b894cf22b4342c5afaf99d7012efda02ffa641fa36f32e1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}