{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18278",
    "entityType": "User",
    "nonce": "0x6ef6be209f98de5812a7a85182e121efd13a8fedb0d066a34028d36622df328d",
    "signature": "0xf2ef6e39b40db126bba996629659b73ac92c6ce3d67ede08f2fd1f1ae816fd8901320266aafbd4f0d6094254aca9e53e146b0c1021b395c50dad71a2f873b35f1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}