{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "235412",
    "entityType": "User",
    "nonce": "0x37faa9fa61585411f9c7cb5e8b697bd1f2e047b60ba03ab2bb59007e93f86148",
    "signature": "0xb5e897ae011170930abcdc748d4ce8f43b97856aeb06c3356ac43d95d9286a6d75120cf5998cb821689bbcaf479f5bde7d248644e33191bd7eaf2edee9075a0b1b",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}