{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "156598",
    "entityType": "User",
    "nonce": "0x69a166e721059e78494d6db987c2b1612610e5bd0fd39b1442c88a13e1a41738",
    "signature": "0x65ba1cdc81264cdf373448089eef2d4751f968debf31ea65ff5d6c6286c8deaf4ae28f0e7e083fef0c7eb2ed8ca05f783ff163337ce47645c4c576e53561cf991b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}