{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x1ed8f50b188b33a9890a29d6e79ef3b72cc315a09110b4bbe14c5b0a7d205b25",
    "signature": "0x533a379f60866aed91f7cc52fe0681fa0a5678b7b1b3aed4c961c6061e014be3630712c04fa1d18eeb325102eff302b1b44f6d272b9bc576944a0643fa88a0a51b",
    "signer": "0x6DFC9b2081230853d5F4203e1e3232ed22612526",
    "userId": "535575"
  }
}