{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x36f7b105d49af89515139a7fccaec216c94c7922d3df85796cc3cb9685fbf26e",
    "signature": "0x14540c9a527e24339feefd22a26e5096d4c44b1e022be1313d51627e1e98071468c3b3c2e9011711421484275016049d7969840be3568dae4647892ae139a8bc1b",
    "signer": "0x0414a6f0C29cB2953342f2ebD9b2f4048bC0D6a4",
    "userId": "725217899"
  }
}