{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50936",
    "entityType": "User",
    "nonce": "0xda53f7451fdfda699aac4194f7f16e7708ac899ccc19a707e6b4762818d4c253",
    "signature": "0x98c70d01b9a3f6a1b5a508b3707b26f82a6fd0d3bcad59a86288ebff895f24610c31eb1fca570cdf70a329fa8d2e2a79f03523c5b9a0428dbba86a4d87e17d5b1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}