{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4b18029339e42eff30c4e9f83a4c5de203b933d668a27c69fcc66064ee62e404",
    "signature": "0x979dbd33c9d6ed9672e8e6cc9bd18dc03de6d72edcc1049c81862ad7371acd0901de766efb07d3a0b8670b1dc3485983f729f0868d5d8363d9daaa496274ae031b",
    "signer": "0x9bbdE35edC7dFdCD501d8D553E783aDda57E3bc6",
    "userId": "965749883"
  }
}