{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "855843",
    "entityType": "User",
    "nonce": "0xb0dd72638f27a445c7fff50bbfe782d179041daba9bbbe8be6e918c12da8829c",
    "signature": "0xf10fe099d063b2959990cf68b739df7f2d3ad25bb4074eaf439b68c435deb31b4e86b06e55ab61f6e533596301bdfc9452b1d7e8fd00216a678f36c71ad448861b",
    "signer": "0x49368dB15B9A78dF090195AD4338818bfA70C88A",
    "userId": "381576190"
  }
}