{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xc4dac9423227fd4641c7e541c43ccfc88a827fecd45c546c8ec267ab9bb9c866",
    "signature": "0x9947378793d260cd664bb088c5c3a5a55c4d4ccc5094fe490717811582349b497d7f2aa3903f66e678dc54bca6e4914a26be3cae093d13c7c79b22832dfdb3271c",
    "signer": "0x59703Be510759288E02691dA4939360e8FcCd725",
    "userId": "38568"
  }
}