{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154520",
    "entityType": "User",
    "nonce": "0xc763edbcf76d1d3b9c6f557a97d13575c43015807806157602cbc8468bd466be",
    "signature": "0x5316edc056da526ee3eeaa9d8d79e5e9a3cbfd0c39ba4b2fa69b219f9045487679f42a99bad100e45805461328f2e0e199c4521af75de3b0ea3764de014a86db1b",
    "signer": "0xa6030211678990225Ac0a6a2862549d825e7A039",
    "userId": "543439291"
  }
}