{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880649",
    "entityType": "User",
    "nonce": "0xb54e2b1fcda59a2e5e56d9773f7baa808183db60b22e75d391cd28c031c0b5b4",
    "signature": "0xaeacddf5f9569194359891dff226e9cc9b3801f76451b20728482ec65826974a7528df3c3dd1698d7fd5f53cdea0d3f942355e1a32105c23415d376bdf77c57b1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}