{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75120",
    "entityType": "User",
    "nonce": "0x253d2b6bcff5586cb46b095761c8d77b4b3569694028d992cb5a12e5a3d3b6b4",
    "signature": "0xfa2f032538a2cdb0a0f69f4eb14d65cea73037bf3f7a8fc9ea8ba81c94dde0a07bf69d98715b90839d177eaab4b935078a6da31807f9a8736a7b32f672165da51b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}