{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75315",
    "entityType": "User",
    "nonce": "0x7afa8139e816c9497e63099c432df2fd6d119f35f5250f3a0d9286915f2c083e",
    "signature": "0xb959809e994bf6ee6391f18ae522622dc8ec2ba35f333c89711c38e02c07d70c5fac015f3833150b9cda21363a088c2e92615fc4b00cef93cd53704654fdbe101c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}