{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xa00360417561ff3fd39b2d60f8c4f23cd8bbc1b4c5db4cdf32ff2be4c84f8d0a",
    "signature": "0xb5ef0c8c21e11bcfa07364071d83f9a4e6b79b33c702cbca5eee2e8404d84f7a28504487a2c0ad4e88f9e82cb807f2859acc5307b7ca32fab0c497c0a862c2551b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}