{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0bf283c993de94ff5ac8f3a8e241681b9a2c16d5ee0d1920dfa932e06c9a7ec6",
    "signature": "0x65d0af43f33d4bbb47ab4fc753463ed5b771cf5d6f40e3f50e8673fb6edad34702a18217c1e4caddff77cd928935afa04303f8918ef9d6bca6539a573b6b90241b",
    "signer": "0x99184440Ee6a129090E49a1c231270aBC49a9427",
    "userId": "21285244"
  }
}