{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "636236864",
    "entityType": "User",
    "nonce": "0x513f041821126a7f4dcb73d5a197afe94b6a29a45140941d30f36e66d98f08f3",
    "signature": "0x17abfd43d9ed0b486dccb3937c23f929443ea06772a8e6e7d0158d9c346396654433360fb841b61b76816346da6c8696f89c816c4d212c00b2a77ded8b886ef11c",
    "signer": "0x21370B7a703524cC2941323C2c960224021F8D56",
    "userId": "986168993"
  }
}